diff --git a/compiler/types.nim b/compiler/types.nim
index 4a53a84c9..cd703474e 100644
--- a/compiler/types.nim
+++ b/compiler/types.nim
@@ -451,7 +451,7 @@ proc typeToString(typ: PType, prefer: TPreferedDesc = preferName): string =
       of tyProc: "proc"
       of tyObject: "object"
       of tyTuple: "tuple"
-      else: (internalAssert false; "")
+      else: (internalAssert(false); "")
   of tyUserTypeClassInst:
     let body = t.base
     result = body.sym.name.s & "["