diff --git a/cocos/base/etc2.cpp b/cocos/base/etc2.cpp
index 39f8cb5f1f..5974e494f2 100644
--- a/cocos/base/etc2.cpp
+++ b/cocos/base/etc2.cpp
@@ -980,7 +980,7 @@ namespace {
         size_t outputDepthPitch);
 }
 
-int etc2_decode_image(int format, const etc2_byte* input, etc2_byte* output, size_t width, size_t height)
+int etc2_decode_image(int format, const etc2_byte* input, etc2_byte* output, etc2_uint32 width, etc2_uint32 height)
 {
     size_t outputRowPitch = 4 * width;
     size_t outputDepthPitch = outputRowPitch * height;
diff --git a/cocos/base/etc2.h b/cocos/base/etc2.h
index 1f8aab5c52..e5af9cf421 100644
--- a/cocos/base/etc2.h
+++ b/cocos/base/etc2.h
@@ -73,7 +73,7 @@ extern "C" {
     /// <param name="width">pixelsHeight</param>
     /// <param name="height">pixelsWidth</param>
     /// <returns>0: success, -1: failed</returns>
-    int etc2_decode_image(int format, const etc2_byte* input, etc2_byte* output, size_t width, size_t height);
+    int etc2_decode_image(int format, const etc2_byte* input, etc2_byte* output, etc2_uint32 width, etc2_uint32 height);
 
 #if defined(__cplusplus)
 }