diff --git a/src/interpreter/ceval.c b/src/interpreter/ceval.c
index 0d31e735..8480be2f 100644
--- a/src/interpreter/ceval.c
+++ b/src/interpreter/ceval.c
@@ -116,7 +116,7 @@ __NEXT_STEP:
 
 #if PK_ENABLE_WATCHDOG
     if(self->watchdog_info.max_reset_time > 0) {
-        if(py_debugger_status() != 0 && clock() > self->watchdog_info.max_reset_time) {
+        if(py_debugger_status() == 0 && clock() > self->watchdog_info.max_reset_time) {
             self->watchdog_info.max_reset_time = 0;
             TimeoutError("watchdog timeout");
             goto __ERROR;