diff --git a/src/core/c-do.c b/src/core/c-do.c
index 267bc3f2a5..e946304b03 100644
--- a/src/core/c-do.c
+++ b/src/core/c-do.c
@@ -918,7 +918,7 @@ x*/	static REBINT Do_Args_Light(REBVAL *func, REBVAL *path, REBSER *block, REBCN
 		// Evaluate the function:
 		DSF = dsf;	// Set new DSF
 		if (!THROWN(DS_TOP)) {
-			//if (Trace_Flags) 
+			if (Trace_Flags) 
 				Trace_Func(word, value);
 			Func_Dispatch[ftype](value);
 		}