diff --git a/src/ifcparse/IfcUtil.cpp b/src/ifcparse/IfcUtil.cpp
index c5fa4a0244..f2a2d958b9 100644
--- a/src/ifcparse/IfcUtil.cpp
+++ b/src/ifcparse/IfcUtil.cpp
@@ -119,15 +119,17 @@ static const char* const argument_type_string[] = {
 	"STRING",
 	"BINARY",
 	"ENUMERATION",
-	"ENTITY_INSTANCE",
+	"ENTITY INSTANCE",
 
-	"AGGREGATE_OF_INT",
-	"AGGREGATE_OF_DOUBLE",
-	"AGGREGATE_OF_STRING",
-	"AGGREGATE_OF_BINARY",
-	"AGGREGATE_OF_ENTITY_INSTANCE",
+	"AGGREGATE OF INT",
+	"AGGREGATE OF DOUBLE",
+	"AGGREGATE OF STRING",
+	"AGGREGATE OF BINARY",
+	"AGGREGATE OF ENTITY INSTANCE",
 
-	"AGGREGATE_OF_AGGREGATE_OF_ENTITY_INSTANCE", 
+	"AGGREGATE OF AGGREGATE OF INT",
+	"AGGREGATE OF AGGREGATE OF DOUBLE",
+	"AGGREGATE OF AGGREGATE OF ENTITY INSTANCE", 
 
 	"UNKNOWN"
 };