diff --git a/interactions.c b/interactions.c
index 39d9bab..a5de679 100644
--- a/interactions.c
+++ b/interactions.c
@@ -208,7 +208,7 @@ void move_right(){
 	} else {
 		char *mime = get_mimetype(mid_dir.current_file);
 		char *extension = mid_dir.current_file->file_name;
-		char *cmd;
+		char *cmd = NULL;
 		while (extension <= mid_dir.current_file->file_name + strlen(mid_dir.current_file->file_name)) {
 			if (*extension == '.') {
 				break;
@@ -216,7 +216,7 @@ void move_right(){
 			extension++;
 		}
 
-		long i; 
+		unsigned long i; 
 		if (extension <= mid_dir.current_file->file_name + strlen(mid_dir.current_file->file_name)) {
 			for (i = 0; i < file_extension_default_count; i++) {
 				if (strcmp(extension, file_extension_default_cmd[i].file_extension) == 0) {
diff --git a/threading.c b/threading.c
index 152b11c..a10a993 100644
--- a/threading.c
+++ b/threading.c
@@ -117,7 +117,7 @@ void *thread_mid(){
 		btm_status = local_status;
 
 
-		long i;
+		unsigned long i;
 		for (i = 0; i < tmp.file_count; i++) {
 			free(tmp.file_list[i].file_name);
 		}
@@ -244,7 +244,7 @@ void *thread_rgt(){
 		render_queue[RENDER_QUEUE_RGT] = 1;
 
 		pthread_mutex_unlock(&mutex_rgt);
-		long i;
+		unsigned long i;
 		for (i = 0; i < tmp.file_count; i++) {
 			free(tmp.file_list[i].file_name);
 		}