diff --git a/src/tint/fuzzers/fuzzer_init.cc b/src/tint/fuzzers/fuzzer_init.cc
index 3d3f692712..66f701a4a5 100644
--- a/src/tint/fuzzers/fuzzer_init.cc
+++ b/src/tint/fuzzers/fuzzer_init.cc
@@ -12,8 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "src/tint/fuzzers/fuzzer_init.h"
+#include <cstddef>
+
 #include "src/tint/fuzzers/cli.h"
+#include "src/tint/fuzzers/fuzzer_init.h"
+#include "testing/libfuzzer/libfuzzer_exports.h"
 
 namespace tint::fuzzers {
 
diff --git a/src/tint/fuzzers/tint_ast_fuzzer/fuzzer.cc b/src/tint/fuzzers/tint_ast_fuzzer/fuzzer.cc
index 20601dfba3..383135db54 100644
--- a/src/tint/fuzzers/tint_ast_fuzzer/fuzzer.cc
+++ b/src/tint/fuzzers/tint_ast_fuzzer/fuzzer.cc
@@ -21,9 +21,9 @@
 #include "src/tint/fuzzers/tint_ast_fuzzer/override_cli_params.h"
 #include "src/tint/fuzzers/tint_common_fuzzer.h"
 #include "src/tint/fuzzers/transform_builder.h"
-
 #include "src/tint/reader/wgsl/parser.h"
 #include "src/tint/writer/wgsl/generator.h"
+#include "testing/libfuzzer/libfuzzer_exports.h"
 
 namespace tint::fuzzers::ast_fuzzer {
 namespace {
diff --git a/src/tint/fuzzers/tint_regex_fuzzer/fuzzer.cc b/src/tint/fuzzers/tint_regex_fuzzer/fuzzer.cc
index 9ffea24a5e..f17987dd14 100644
--- a/src/tint/fuzzers/tint_regex_fuzzer/fuzzer.cc
+++ b/src/tint/fuzzers/tint_regex_fuzzer/fuzzer.cc
@@ -24,6 +24,7 @@
 #include "src/tint/fuzzers/transform_builder.h"
 #include "src/tint/reader/wgsl/parser.h"
 #include "src/tint/writer/wgsl/generator.h"
+#include "testing/libfuzzer/libfuzzer_exports.h"
 
 namespace tint::fuzzers::regex_fuzzer {
 namespace {
diff --git a/src/tint/fuzzers/tint_spirv_tools_fuzzer/fuzzer.cc b/src/tint/fuzzers/tint_spirv_tools_fuzzer/fuzzer.cc
index c35e0ce087..41e417bc04 100644
--- a/src/tint/fuzzers/tint_spirv_tools_fuzzer/fuzzer.cc
+++ b/src/tint/fuzzers/tint_spirv_tools_fuzzer/fuzzer.cc
@@ -27,6 +27,7 @@
 #include "src/tint/fuzzers/tint_spirv_tools_fuzzer/spirv_opt_mutator.h"
 #include "src/tint/fuzzers/tint_spirv_tools_fuzzer/spirv_reduce_mutator.h"
 #include "src/tint/fuzzers/tint_spirv_tools_fuzzer/util.h"
+#include "testing/libfuzzer/libfuzzer_exports.h"
 
 namespace tint::fuzzers::spvtools_fuzzer {
 namespace {