diff --git a/tests/ImageDecodingTest.cpp b/tests/ImageDecodingTest.cpp
index 86b96ae..d5dd11a 100644
--- a/tests/ImageDecodingTest.cpp
+++ b/tests/ImageDecodingTest.cpp
@@ -55,6 +55,7 @@
         case SkImageDecoder::kICO_Format:
         case SkImageDecoder::kBMP_Format:
         // The rest of these are opaque.
+        case SkImageDecoder::kPKM_Format:
         case SkImageDecoder::kWBMP_Format:
         case SkImageDecoder::kGIF_Format:
         case SkImageDecoder::kJPEG_Format: