1 files changed, 4 insertions, 2 deletions
diff --git a/cont.c b/cont.c
index d4d6f2e60d..e340677fba 100644
--- a/cont.c
+++ b/cont.c
@@ -709,8 +709,10 @@ cont_restore_thread(rb_context_t *cont)
 	if (sec->trace_arg == NULL && th->ec->trace_arg != NULL) {
 	    GET_VM()->trace_running--;
 	}
-	else if (sec->trace_arg == NULL && th->ec->trace_arg != NULL) {
-	    GET_VM()->trace_running++;
+	else { /* sec->trace_arg == NULL */
+	    if (th->ec->trace_arg != NULL) {
+		GET_VM()->trace_running++;
+	    }
 	}
 	th->ec->trace_arg = sec->trace_arg;