diff --git a/src/main/fc/config.c b/src/main/fc/config.c
index 6f53798902..425fd33fcc 100755
--- a/src/main/fc/config.c
+++ b/src/main/fc/config.c
@@ -1252,7 +1252,7 @@ void validateAndFixGyroConfig(void)
 #endif
     } else {
 #if defined(STM32F1)
-        gyroConfig()->gyro_sync_denom = MAX(gyroConfig()->gyro_sync_denom, 4);
+        gyroConfig()->gyro_sync_denom = MAX(gyroConfig()->gyro_sync_denom, 3);
 #endif
     }