diff --git a/src/tint/reader/wgsl/parser_impl.cc b/src/tint/reader/wgsl/parser_impl.cc
index 31481fe275..3bd7703b53 100644
--- a/src/tint/reader/wgsl/parser_impl.cc
+++ b/src/tint/reader/wgsl/parser_impl.cc
@@ -2213,7 +2213,8 @@ Maybe<const ast::BlockStatement*> ParserImpl::case_body() {
             deprecated(source,
                        "fallthrough is set to be removed from WGSL. "
                        "Case can accept multiple selectors if the existing case bodies are empty. "
-                       "default is not yet supported in a case selector list.");
+                       "(e.g. `case 1, 2, 3:`) "
+                       "`default` is a valid case selector value. (e.g. `case 1, default:`)");
 
             stmts.Push(create<ast::FallthroughStatement>(source));
             break;
diff --git a/src/tint/resolver/uniformity_test.cc b/src/tint/resolver/uniformity_test.cc
index 0940e069d2..79047d1db9 100644
--- a/src/tint/resolver/uniformity_test.cc
+++ b/src/tint/resolver/uniformity_test.cc
@@ -3423,7 +3423,7 @@ fn foo() {
     RunTest(src, false);
     EXPECT_EQ(
         error_,
-        R"(test:11:7 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+        R"(test:11:7 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
       fallthrough;
       ^^^^^^^^^^^
 
@@ -3493,7 +3493,7 @@ fn foo() {
     RunTest(src, false);
     EXPECT_EQ(
         error_,
-        R"(test:10:7 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+        R"(test:10:7 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
       fallthrough;
       ^^^^^^^^^^^
 
diff --git a/test/tint/statements/switch/fallthrough.wgsl.expected.dxc.hlsl b/test/tint/statements/switch/fallthrough.wgsl.expected.dxc.hlsl
index 0401873c43..de066b77ab 100644
--- a/test/tint/statements/switch/fallthrough.wgsl.expected.dxc.hlsl
+++ b/test/tint/statements/switch/fallthrough.wgsl.expected.dxc.hlsl
@@ -1,4 +1,4 @@
-statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
             fallthrough;
             ^^^^^^^^^^^
 
diff --git a/test/tint/statements/switch/fallthrough.wgsl.expected.fxc.hlsl b/test/tint/statements/switch/fallthrough.wgsl.expected.fxc.hlsl
index 0401873c43..de066b77ab 100644
--- a/test/tint/statements/switch/fallthrough.wgsl.expected.fxc.hlsl
+++ b/test/tint/statements/switch/fallthrough.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
             fallthrough;
             ^^^^^^^^^^^
 
diff --git a/test/tint/statements/switch/fallthrough.wgsl.expected.glsl b/test/tint/statements/switch/fallthrough.wgsl.expected.glsl
index a8ba89975f..6ca3be411a 100644
--- a/test/tint/statements/switch/fallthrough.wgsl.expected.glsl
+++ b/test/tint/statements/switch/fallthrough.wgsl.expected.glsl
@@ -1,4 +1,4 @@
-statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
             fallthrough;
             ^^^^^^^^^^^
 
diff --git a/test/tint/statements/switch/fallthrough.wgsl.expected.msl b/test/tint/statements/switch/fallthrough.wgsl.expected.msl
index 3377486b65..d2cd679c2b 100644
--- a/test/tint/statements/switch/fallthrough.wgsl.expected.msl
+++ b/test/tint/statements/switch/fallthrough.wgsl.expected.msl
@@ -1,4 +1,4 @@
-statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
             fallthrough;
             ^^^^^^^^^^^
 
diff --git a/test/tint/statements/switch/fallthrough.wgsl.expected.spvasm b/test/tint/statements/switch/fallthrough.wgsl.expected.spvasm
index 4daf8702ce..dc8c06387b 100644
--- a/test/tint/statements/switch/fallthrough.wgsl.expected.spvasm
+++ b/test/tint/statements/switch/fallthrough.wgsl.expected.spvasm
@@ -1,4 +1,4 @@
-statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
             fallthrough;
             ^^^^^^^^^^^
 
diff --git a/test/tint/statements/switch/fallthrough.wgsl.expected.wgsl b/test/tint/statements/switch/fallthrough.wgsl.expected.wgsl
index b352c8fde8..50254ab400 100644
--- a/test/tint/statements/switch/fallthrough.wgsl.expected.wgsl
+++ b/test/tint/statements/switch/fallthrough.wgsl.expected.wgsl
@@ -1,4 +1,4 @@
-statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. default is not yet supported in a case selector list.
+statements/switch/fallthrough.wgsl:6:13 warning: use of deprecated language feature: fallthrough is set to be removed from WGSL. Case can accept multiple selectors if the existing case bodies are empty. (e.g. `case 1, 2, 3:`) `default` is a valid case selector value. (e.g. `case 1, default:`)
             fallthrough;
             ^^^^^^^^^^^