diff --git a/components/modules/camera/who_camera.h b/components/modules/camera/who_camera.h
index 188bd9c..474154c 100644
--- a/components/modules/camera/who_camera.h
+++ b/components/modules/camera/who_camera.h
@@ -192,7 +192,7 @@
 #define CAMERA_PIN_PCLK CONFIG_CAMERA_PIN_PCLK
 #endif
 
-#define XCLK_FREQ_HZ 20000000
+#define XCLK_FREQ_HZ 16000000
 
 #ifdef __cplusplus
 extern "C"