diff --git a/src/ifcopenshell-python/ifcopenshell/express/templates.py b/src/ifcopenshell-python/ifcopenshell/express/templates.py
index 6870608335..af9ad4d1e9 100644
--- a/src/ifcopenshell-python/ifcopenshell/express/templates.py
+++ b/src/ifcopenshell-python/ifcopenshell/express/templates.py
@@ -36,7 +36,7 @@ header = """
 
 struct %(schema_name)s {
 
-static const IfcParse::schema_definition& get_schema();
+IFC_PARSE_API static const IfcParse::schema_definition& get_schema();
 
 static const char* const Identifier;