diff --git a/atdna/main.cpp b/atdna/main.cpp
index 0becc78..55035af 100644
--- a/atdna/main.cpp
+++ b/atdna/main.cpp
@@ -262,7 +262,11 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor> {
               templateStmt += ", ";
               qualType += ", ";
             }
-            templateStmt += nonTypeParm->getType().getAsString().append(1, ' ').append(nonTypeParm->getName().str());
+            if (nonTypeParm->getType()->isBooleanType()) {
+              templateStmt += std::string("bool ") + nonTypeParm->getName().str();
+            } else {
+              templateStmt += nonTypeParm->getType().getAsString().append(1, ' ').append(nonTypeParm->getName().str());
+            }
             qualType += nonTypeParm->getName();
             needsComma = true;
           }