diff --git a/src/V3AstNodeDType.h b/src/V3AstNodeDType.h
index b857dd58b..89a41aeff 100644
--- a/src/V3AstNodeDType.h
+++ b/src/V3AstNodeDType.h
@@ -126,7 +126,7 @@ public:
     const char* charIQWN() const {
         return (isString() ? "N" : isWide() ? "W" : isQuad() ? "Q" : "I");
     }
-    string cType(const string& name, bool forFunc, bool isRef, bool packed=false) const;
+    string cType(const string& name, bool forFunc, bool isRef, bool packed = false) const;
     // Represents a C++ LiteralType? (can be constexpr)
     bool isLiteralType() const VL_MT_STABLE;