diff --git a/services/camera/libcameraservice/utils/TagMonitor.cpp b/services/camera/libcameraservice/utils/TagMonitor.cpp
index c0a353f..f4c49ec 100644
--- a/services/camera/libcameraservice/utils/TagMonitor.cpp
+++ b/services/camera/libcameraservice/utils/TagMonitor.cpp
@@ -49,7 +49,8 @@
     std::lock_guard<std::mutex> lock(mMonitorMutex);
 
     // Expand shorthands
-    if (ssize_t idx = tagNames.find("3a") != -1) {
+    ssize_t idx = tagNames.find("3a");
+    if (idx != -1) {
         ssize_t end = tagNames.find(",", idx);
         char* start = tagNames.lockBuffer(tagNames.size());
         start[idx] = '\0';