diff --git a/src/uuid/uuid.c b/src/uuid/uuid.c
index c7ccd62..0752024 100644
--- a/src/uuid/uuid.c
+++ b/src/uuid/uuid.c
@@ -4,6 +4,7 @@
 #include "../prng/xorshift/xorshift.h"
 #include <stdbool.h>
 #include <inttypes.h>
+#include <assert.h>
 
 #define UUID_STR_FORMAT ("%.8" PRIx64 "-%.4" PRIx64 "-%.4" PRIx64 "-%.4" PRIx64 "-%.12" PRIx64)
 
@@ -17,15 +18,12 @@ internal UUID4 generate_uuid4(void);
 internal void  uuid4_to_uuid(const UUID4* uuid4, UUID *uuid);
 
 UUID *wapp_uuid_init_uuid4(UUID *uuid) {
-	if (!uuid) {
-		goto RETURN_INIT_UUID4;
-	}
+  assert(uuid != NULL && "uuid argument shouldn't be NULL");
 
   UUID4 uuid4 = generate_uuid4();
   uuid4_to_uuid(&uuid4, uuid);
 
-RETURN_INIT_UUID4:
-	return uuid;
+  return uuid;
 }
 
 internal UUID4 generate_uuid4(void) {