diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CppQt5ClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CppQt5ClientCodegen.java
index e033b7c44b8..fa812143330 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CppQt5ClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CppQt5ClientCodegen.java
@@ -253,7 +253,7 @@ public class CppQt5ClientCodegen extends AbstractCppCodegen implements CodegenCo
         if (!folder.isEmpty())
             folder += File.separator;
 
-        return "#include \"" + folder + toModelName(name) + ".h\"";
+        return "#include \"" + folder + sanitizeName(name) + ".h\"";
     }
 
     /**