diff --git a/src/ifcparse/IfcWrite.cpp b/src/ifcparse/IfcWrite.cpp
index 75d72294ac..d6640ce5fa 100644
--- a/src/ifcparse/IfcWrite.cpp
+++ b/src/ifcparse/IfcWrite.cpp
@@ -328,7 +328,7 @@ IfcUtil::ArgumentType IfcWriteArgument::type() const {
 	if (ty < 0) {
 		return IfcUtil::Argument_UNKNOWN;
 	} else {
-		static_cast<IfcUtil::ArgumentType>(ty);
+		return static_cast<IfcUtil::ArgumentType>(ty);
 	}
 }