diff --git a/src/config.c b/src/config.c
index 972e376c..6c80b7f2 100644
--- a/src/config.c
+++ b/src/config.c
@@ -252,7 +252,7 @@ static char *get_config_path() {
         if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL)
                 xdg_config_dirs = "/etc/xdg";
 
-        char *buf = strdup(xdg_config_dirs);
+        char *buf = sstrdup(xdg_config_dirs);
         char *tok = strtok(buf, ":");
         while (tok != NULL) {
                 tok = glob_path(tok);
@@ -273,7 +273,7 @@ static char *get_config_path() {
         if (path_exists(config_path))
                 return config_path;
 
-        config_path = strdup("/etc/i3/config");
+        config_path = sstrdup("/etc/i3/config");
         if (!path_exists(config_path))
                 die("Neither $XDG_CONFIG_HOME/i3/config, nor "
                     "$XDG_CONFIG_DIRS/i3/config, nor ~/.i3/config nor "