diff --git a/gum/gummemory.c b/gum/gummemory.c
index 26c800dd5..871c82181 100644
--- a/gum/gummemory.c
+++ b/gum/gummemory.c
@@ -576,8 +576,8 @@ gum_match_pattern_new_from_regex (const gchar * regex_str)
   GumMatchPattern * pattern;
   GRegex * regex;
 
-  regex = g_regex_new (regex_str, G_REGEX_OPTIMIZE, G_REGEX_MATCH_NOTEMPTY,
-      NULL);
+  regex = g_regex_new (regex_str, G_REGEX_OPTIMIZE | G_REGEX_RAW,
+      G_REGEX_MATCH_NOTEMPTY, NULL);
   if (regex == NULL)
     return NULL;
 
diff --git a/releng b/releng
index d1e77f19c..4622f5c4c 160000
--- a/releng
+++ b/releng
@@ -1 +1 @@
-Subproject commit d1e77f19c6d21e647f3f57b4701256f8306c670d
+Subproject commit 4622f5c4c432d94c1c625e598b120425a68a8414
diff --git a/tests/gumjs/script.c b/tests/gumjs/script.c
index 42afd58e9..ed040571d 100644
--- a/tests/gumjs/script.c
+++ b/tests/gumjs/script.c
@@ -8139,6 +8139,22 @@ TESTCASE (memory_can_be_scanned_with_match_pattern_object)
   EXPECT_SEND_MESSAGE_WITH ("\"onMatch offset=0 size=11\"");
   EXPECT_SEND_MESSAGE_WITH ("\"onMatch offset=13 size=11\"");
   EXPECT_SEND_MESSAGE_WITH ("\"onComplete\"");
+
+  haystack2[7] = 0xd1;
+
+  COMPILE_AND_LOAD_SCRIPT (
+      "const pattern = new MatchPattern(/Hello/.toString());"
+      "Memory.scan(" GUM_PTR_CONST ", 33, pattern, {"
+        "onMatch(address, size) {"
+        "  send('onMatch offset=' + address.sub(" GUM_PTR_CONST
+             ").toInt32() + ' size=' + size);"
+        "},"
+        "onComplete() {"
+        "  send('onComplete');"
+        "}"
+      "});", haystack2, haystack2);
+  EXPECT_SEND_MESSAGE_WITH ("\"onMatch offset=0 size=5\"");
+  EXPECT_SEND_MESSAGE_WITH ("\"onComplete\"");
 }
 
 TESTCASE (memory_can_be_scanned_synchronously)