diff --git a/tests/wpt/metadata-css/css-transitions-1_dev/html/pseudo-elements-001.htm.ini b/tests/wpt/metadata-css/css-transitions-1_dev/html/pseudo-elements-001.htm.ini
index 895b227441a4..38e495fedd63 100644
--- a/tests/wpt/metadata-css/css-transitions-1_dev/html/pseudo-elements-001.htm.ini
+++ b/tests/wpt/metadata-css/css-transitions-1_dev/html/pseudo-elements-001.htm.ini
@@ -1,8 +1,3 @@
 [pseudo-elements-001.htm]
   type: testharness
-  [transition padding-left on :before / values]
-    expected: FAIL
-
-  [transition padding-left on :after / values]
-    expected: FAIL
-
+  disabled: https://github.com/servo/servo/issues/13593
diff --git a/tests/wpt/metadata-css/css21_dev/html4/pseudo-elements-001.htm.ini b/tests/wpt/metadata-css/css21_dev/html4/pseudo-elements-001.htm.ini
index 895b227441a4..38e495fedd63 100644
--- a/tests/wpt/metadata-css/css21_dev/html4/pseudo-elements-001.htm.ini
+++ b/tests/wpt/metadata-css/css21_dev/html4/pseudo-elements-001.htm.ini
@@ -1,8 +1,3 @@
 [pseudo-elements-001.htm]
   type: testharness
-  [transition padding-left on :before / values]
-    expected: FAIL
-
-  [transition padding-left on :after / values]
-    expected: FAIL
-
+  disabled: https://github.com/servo/servo/issues/13593