1 files changed, 2 insertions, 0 deletions
diff --git a/testing/image_diff/image_diff_png.cpp b/testing/image_diff/image_diff_png.cpp
index 48b5ae17b4..47c1fe4c24 100644
--- a/testing/image_diff/image_diff_png.cpp
+++ b/testing/image_diff/image_diff_png.cpp
@@ -16,6 +16,7 @@
 
 #include <string>
 
+#include "core/fxcrt/fx_fallthrough.h"
 #include "third_party/base/logging.h"
 #include "third_party/zlib/zlib.h"
 
@@ -581,6 +582,7 @@ bool EncodeWithCompressionLevel(const unsigned char* input,
   switch (format) {
     case FORMAT_BGR:
       converter = ConvertBGRtoRGB;
+      FX_FALLTHROUGH;
 
     case FORMAT_RGB:
       input_color_components = 3;