diff --git a/tests/ReadWriteAlphaTest.cpp b/tests/ReadWriteAlphaTest.cpp
index 2d6da96..4b3f671 100644
--- a/tests/ReadWriteAlphaTest.cpp
+++ b/tests/ReadWriteAlphaTest.cpp
@@ -14,6 +14,11 @@
 
 void ReadWriteAlphaTest(skiatest::Reporter* reporter, GrContext* context) {
 
+#if SK_SCALAR_IS_FIXED
+    // GPU device known not to work in the fixed pt build.
+    return;
+#endif
+
     unsigned char textureData[X_SIZE][Y_SIZE];
 
     memset(textureData, 0, X_SIZE * Y_SIZE);