1 files changed, 2 insertions, 3 deletions
diff --git a/gps/android/location_api/GnssAPIClient.h b/gps/android/location_api/GnssAPIClient.h
index 295a9e9..b5cffb1 100644
--- a/gps/android/location_api/GnssAPIClient.h
+++ b/gps/android/location_api/GnssAPIClient.h
@@ -30,7 +30,7 @@
 #ifndef GNSS_API_CLINET_H
 #define GNSS_API_CLINET_H
 
-
+#include <mutex>
 #include <android/hardware/gnss/1.0/IGnss.h>
 #include <android/hardware/gnss/1.0/IGnssCallback.h>
 #include <android/hardware/gnss/1.0/IGnssNiCallback.h>
@@ -91,11 +91,10 @@ public:
 private:
     sp<IGnssCallback> mGnssCbIface;
     sp<IGnssNiCallback> mGnssNiCbIface;
-
+    std::mutex mMutex;
     LocationAPIControlClient* mControlClient;
     LocationCapabilitiesMask mLocationCapabilitiesMask;
     bool mLocationCapabilitiesCached;
-
     LocationOptions mLocationOptions;
 };