1 files changed, 2 insertions, 1 deletions

diff --git a/src/search.c b/src/search.c
index 939c3f7cde0..75bfe053911 100644
--- a/src/search.c
+++ b/src/search.c
@@ -886,7 +886,8 @@ trivial_regexp_p (regexp)
             {
             case '|': case '(': case ')': case '`': case '\'': case 'b':
             case 'B': case '<': case '>': case 'w': case 'W': case 's':
-            case 'S': case '1': case '2': case '3': case '4': case '5':
+            case 'S': case '=':
+            case '1': case '2': case '3': case '4': case '5':
             case '6': case '7': case '8': case '9':
               return 0;
             }