diff --git a/.gitignore b/.gitignore
index 7996fc5e51..3c60954df4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,4 @@ stm32.mak
 
 .vagrant
 ubuntu*.log
+/.vs
diff --git a/src/main/flight/imu.c b/src/main/flight/imu.c
index 86a44cb1c4..ca51c8e7a2 100644
--- a/src/main/flight/imu.c
+++ b/src/main/flight/imu.c
@@ -58,7 +58,7 @@ static uint32_t imuDeltaT = 0;
 static bool imuUpdated = false;
 #endif
 
-#define IMU_LOCK pthread_mutex_unlock(&imuUpdateLock)
+#define IMU_LOCK pthread_mutex_lock(&imuUpdateLock)
 #define IMU_UNLOCK pthread_mutex_unlock(&imuUpdateLock)
 
 #else