diff --git a/source/libublsettings-config.c b/source/libublsettings-config.c
index 2a2eb28..afe8a92 100644
--- a/source/libublsettings-config.c
+++ b/source/libublsettings-config.c
@@ -1099,6 +1099,7 @@ enum YON_CONFIG_SAVED_TYPE yon_config_register_default(char *key,char *config_lo
 
 
 config_str yon_config_load(char *command, int *str_len){
+    (*str_len) = 0;
     FILE *output = popen(command, "r");
     char **output_strings = NULL;
     output_strings = malloc(sizeof(char));