diff --git a/src/command/cmd_funcs.c b/src/command/cmd_funcs.c
index 7d9f92f2..55082765 100644
--- a/src/command/cmd_funcs.c
+++ b/src/command/cmd_funcs.c
@@ -8921,7 +8921,9 @@ cmd_urlopen(ProfWin *window, const char *const command, gchar **args)
             return TRUE;
         }
 
-        call_external(prefs_get_string(PREF_URL_OPEN_CMD), args[0]);
+        gchar* cmd = prefs_get_string(PREF_URL_OPEN_CMD);
+        call_external(cmd, args[0]);
+        g_free(cmd);
     } else {
         cons_show("urlopen not supported in this window");
     }