diff --git a/gnss/1.0/default/Android.mk b/gnss/1.0/default/Android.mk
index 73889b5..b4ef9a8 100644
--- a/gnss/1.0/default/Android.mk
+++ b/gnss/1.0/default/Android.mk
@@ -28,6 +28,8 @@
     android.hardware.gnss@1.0 \
     libhardware
 
+LOCAL_CFLAGS += -Werror
+
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
diff --git a/gnss/1.0/default/GnssBatching.cpp b/gnss/1.0/default/GnssBatching.cpp
index 95c5e60..5e383e7 100644
--- a/gnss/1.0/default/GnssBatching.cpp
+++ b/gnss/1.0/default/GnssBatching.cpp
@@ -115,7 +115,7 @@
 }
 
 // this can just return success, because threads are now set up on demand in the jni layer
-int32_t GnssBatching::setThreadEventCb(ThreadEvent event) {
+int32_t GnssBatching::setThreadEventCb(ThreadEvent /*event*/) {
     return FLP_RESULT_SUCCESS;
 }