diff --git a/src/config.c b/src/config.c
--- a/src/config.c
+++ b/src/config.c
@@ -64,7 +64,7 @@
             while (CONFIG_OPTIONS[map] != NULL) {
                 if (!strcmp (CONFIG_OPTIONS[map], token)) {
                     if (value) {
-                        if (line[map] != '\0')
+                        if (line[map] != NULL)
                             free (line[map]);
                         line[map] = compat_strdup (value);
                     }
@@ -76,7 +76,7 @@
 
     map = 0;
     while (CONFIG_OPTIONS[map] != NULL) {
-        if (line[map] != '\0')
+        if (line[map] != NULL)
             switch (map) {
             case NICK:
                 uc->nick = compat_strdup (line[map]);