diff --git a/src/search/normal.c b/src/search/normal.c
index a9b5b4792..2ede439da 100644
--- a/src/search/normal.c
+++ b/src/search/normal.c
@@ -119,7 +119,8 @@ mc_search__run_normal (mc_search_t * mc_search, const void *user_data,
 
             case COND__FOUND_CHAR_LAST:
                 mc_search->normal_offset = current_pos;
-                *found_len = search_pos + 1;
+                if (found_len)
+                    *found_len = search_pos + 1;
                 return TRUE;
                 break;
 
diff --git a/src/search/regex.c b/src/search/regex.c
index 83f83a2d9..70c05ae6f 100644
--- a/src/search/regex.c
+++ b/src/search/regex.c
@@ -453,7 +453,8 @@ mc_search__run_regex (mc_search_t * mc_search, const void *user_data,
             end_pos = mc_search->regex_match_info[0].rm_eo;
 #endif /* HAVE_LIBPCRE */
 #endif /* GLIB_CHECK_VERSION (2, 14, 0) */
-            *found_len = end_pos - start_pos;
+            if (found_len)
+                *found_len = end_pos - start_pos;
             mc_search->normal_offset = start_buffer + start_pos;
             return TRUE;
             break;