diff --git a/test/pdfs/.gitignore b/test/pdfs/.gitignore
index 23ba6340e..fd541a06d 100644
--- a/test/pdfs/.gitignore
+++ b/test/pdfs/.gitignore
@@ -20,3 +20,4 @@
 !scan-bad.pdf
 !freeculture.pdf
 !issue918.pdf
+!smaskdim.pdf
diff --git a/test/pdfs/smaskdim.pdf b/test/pdfs/smaskdim.pdf
new file mode 100755
index 000000000..ad9eef0cf
Binary files /dev/null and b/test/pdfs/smaskdim.pdf differ
diff --git a/test/test_manifest.json b/test/test_manifest.json
index 7469db678..040cd27da 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -361,5 +361,11 @@
       "rounds": 1,
       "link": true,
       "type": "eq"
+    },
+    {  "id": "smaskdim",
+      "file": "pdfs/smaskdim.pdf",
+      "md5": "2950c1458cd6efda6b183aabe3f1dd79",
+      "rounds": 1,
+      "type": "eq"
     }
 ]