diff --git a/vsyncworker.cpp b/vsyncworker.cpp
index d431d2e..6ac016d 100644
--- a/vsyncworker.cpp
+++ b/vsyncworker.cpp
@@ -120,6 +120,7 @@
   if (!enabled_) {
     ret = WaitForSignalOrExitLocked();
     if (ret == -EINTR) {
+      Unlock();
       return;
     }
   }