diff --git a/conformance-suites/2.0.0/conformance2/reading/read-pixels-from-fbo-test.html b/conformance-suites/2.0.0/conformance2/reading/read-pixels-from-fbo-test.html
index 0bbc966708..ad5ec526eb 100644
--- a/conformance-suites/2.0.0/conformance2/reading/read-pixels-from-fbo-test.html
+++ b/conformance-suites/2.0.0/conformance2/reading/read-pixels-from-fbo-test.html
@@ -140,12 +140,12 @@
     case gl.RG8:
     case gl.RGB8:
     case gl.RGBA8:
-    case gl.RGB5_A1:
     case gl.SRGB8_ALPHA8:
     case gl.RGB10_A2:
       srcIsNormalized = true;
       tol = 6;
       break;
+    case gl.RGB5_A1:
     case gl.RGB565:
       // RGB565 needs slightly extra tolerance, at least on Google Pixel. crbug.com/682753
       srcIsNormalized = true;
diff --git a/sdk/tests/conformance2/reading/read-pixels-from-fbo-test.html b/sdk/tests/conformance2/reading/read-pixels-from-fbo-test.html
index c06e9988ed..5d0b240bcf 100644
--- a/sdk/tests/conformance2/reading/read-pixels-from-fbo-test.html
+++ b/sdk/tests/conformance2/reading/read-pixels-from-fbo-test.html
@@ -119,12 +119,12 @@
     case gl.RG8:
     case gl.RGB8:
     case gl.RGBA8:
-    case gl.RGB5_A1:
     case gl.SRGB8_ALPHA8:
     case gl.RGB10_A2:
       srcIsNormalized = true;
       tol = 6;
       break;
+    case gl.RGB5_A1:
     case gl.RGB565:
       // RGB565 needs slightly extra tolerance, at least on Google Pixel. crbug.com/682753
       srcIsNormalized = true;