diff --git a/idl/idl_api.ysl2 b/idl/idl_api.ysl2
index 179818a..fbc4da8 100644
--- a/idl/idl_api.ysl2
+++ b/idl/idl_api.ysl2
@@ -60,7 +60,7 @@ def "func:idl_type_is_of_typekind_struct" {
     result "func:exists(//struct[@name=$idltype])";
 }
 
-def "func:idl_type_is_generic§" {
+def "func:idl_type_is_generic" {
     param "idltype";
     result "contains($idltype,'<') and contains($idltype,'>')"
 }