diff --git a/utils/code_model_generator/main.cpp b/utils/code_model_generator/main.cpp
index 06f54522..95959c44 100755
--- a/utils/code_model_generator/main.cpp
+++ b/utils/code_model_generator/main.cpp
@@ -351,17 +351,7 @@ void makeGetterValue(PIFile & f, const PICodeParser::Entity * e) {
 
 
 void writeModel(PICodeParser & parser, PICLI & cli, const PIString out, bool meta, bool enums, bool streams, bool texts, bool getters) {
-	PIVector<const PICodeParser::Entity * > ventities;
-	PIString defname = out
-						.replacedAll('.', '_')
-						.replaceAll('/', '_')
-						.replaceAll(':', '_')
-						.replaceAll('-', '_')
-						.replaceAll('@', '_')
-						.replaceAll('\\', '_')
-						.removeAll(' ')
-						.toUpperCase()
-						+ "_H";
+	PIString defname = "CCM_" + PIString::fromNumber(out.hash()) + "_H";
 	PISet<PIString> inc_files;
 	piForeachC (PICodeParser::Entity * e, parser.entities)
 		if (e->name.find("::") < 0 && !e->name.startsWith("_PI"))