added mail-program property

1 files changed, 1 insertions, 1 deletions

diff --git a/src/util.c b/src/util.c
index b963bac7..45abef3e 100644
--- a/src/util.c
+++ b/src/util.c
@@ -14,7 +14,7 @@ char *
 dwb_util_string_replace(const char *haystack, const char *needle, const char *replacemant) {
   char **token;
   char *ret = NULL;
-  if ( (token = g_regex_split_simple(needle, haystack, 0, 0)) && strcmp(token[0], haystack)) {
+  if ( haystack && needle && (token = g_regex_split_simple(needle, haystack, 0, 0)) && strcmp(token[0], haystack)) {
     ret = g_strconcat(token[0], replacemant, token[1], NULL);
     g_strfreev(token);
   }