diff --git a/src/main.h b/src/main.h
index e5226b69421..76020420cbf 100644
--- a/src/main.h
+++ b/src/main.h
@@ -1883,7 +1883,7 @@ private:
     int nDoS;
     bool corruptionPossible;
 public:
-    CValidationState() : mode(MODE_VALID), nDoS(0) {}
+    CValidationState() : mode(MODE_VALID), nDoS(0), corruptionPossible(false) {}
     bool DoS(int level, bool ret = false, bool corruptionIn = false) {
         if (mode == MODE_ERROR)
             return ret;