diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index 93f5b24..8288ff9 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,15 @@
+2022-01-26  Ryan Haddad  <ryanhaddad@apple.com>
+
+        ASSERTION FAILED: m_pdfDocument under WebKit::PDFPlugin::installPDFDocument()
+        https://bugs.webkit.org/show_bug.cgi?id=235660
+
+        Unreviewed test gardening.
+
+        Speculatively skip fast/replaced/encrypted-pdf-as-object-and-embed.html, which runs right
+        before a non-PDF test that gets the blame for the crash.
+
+        * platform/mac/TestExpectations:
+
 2022-01-26  Arcady Goldmints-Orlov  <agoldmints@igalia.com>
 
         [GLIB] Update test expectations and baselines. Unreviewed test gardening.
diff --git a/LayoutTests/platform/mac/TestExpectations b/LayoutTests/platform/mac/TestExpectations
index 7bc1b9b..897e7a2 100644
--- a/LayoutTests/platform/mac/TestExpectations
+++ b/LayoutTests/platform/mac/TestExpectations
@@ -2425,6 +2425,8 @@
 
 webkit.org/b/235084 [ arm64 ] imported/w3c/web-platform-tests/css/css-transforms/perspective-transforms-equivalence.html [ ImageOnlyFailure ]
 
+webkit.org/b/235660 [ Debug ] fast/replaced/encrypted-pdf-as-object-and-embed.html [ Skip ]
+
 # <model> tests involving the ready promise can only work on Monterey and up
 [ Catalina BigSur ] model-element/model-element-ready.html [ Skip ]