diff --git a/include/uapi/linux/rk-camera-module.h b/include/uapi/linux/rk-camera-module.h
index cee2643e18da..4fe10c838c47 100644
--- a/include/uapi/linux/rk-camera-module.h
+++ b/include/uapi/linux/rk-camera-module.h
@@ -13,7 +13,7 @@
 #define RKMODULE_API_VERSION		KERNEL_VERSION(0, 1, 0x2)
 
 /* using for rk3588 dual isp unite */
-#define RKMOUDLE_UNITE_EXTEND_PIXEL	128
+#define RKMOUDLE_UNITE_EXTEND_PIXEL	32
 /* using for rv1109 and rv1126 */
 #define RKMODULE_EXTEND_LINE		24