diff --git a/utils/code_model_generator/main.cpp b/utils/code_model_generator/main.cpp
index 23d05626..64138050 100755
--- a/utils/code_model_generator/main.cpp
+++ b/utils/code_model_generator/main.cpp
@@ -113,7 +113,7 @@ void makeEnumInfo(PIFile & f, const PICodeParser::Enum * e) {
 
 void writeModel(PICodeParser & parser, const PIString out, bool only_enums) {
 	PIVector<const PICodeParser::Entity * > ventities;
-	PIString defname = out.replaceAll(".", "_").replaceAll("/", "_").replaceAll(":", "_").toUpperCase() + "_H";
+	PIString defname = out.replaceAll(".", "_").replaceAll("/", "_").replaceAll(":", "_").replaceAll("-", "_").toUpperCase() + "_H";
 	
 	PISet<PIString> inc_files;
 	piForeachC (PICodeParser::Entity * e, parser.entities)