diff --git a/src/pkg/runtime/symtab.c b/src/pkg/runtime/symtab.c
index 0346a420b54..df4c9ad76cf 100644
--- a/src/pkg/runtime/symtab.c
+++ b/src/pkg/runtime/symtab.c
@@ -507,6 +507,9 @@ contains(String s, int8 *p)
 bool
 runtime·showframe(Func *f)
 {
-	// return 1;  // for debugging - show all frames
-	return contains(f->name, ".") && !hasprefix(f->name, "runtime.");
+	static int32 traceback = -1;
+	
+	if(traceback < 0)
+		traceback = runtime·gotraceback();
+	return traceback > 1 || contains(f->name, ".") && !hasprefix(f->name, "runtime.");
 }