diff --git a/twrpTar.cpp b/twrpTar.cpp
index bbe5125..b6e4410 100644
--- a/twrpTar.cpp
+++ b/twrpTar.cpp
@@ -467,7 +467,8 @@
 				twrpTar tars[9];
 				pthread_t tar_thread[9];
 				pthread_attr_t tattr;
-				int thread_count = 0, i, start_thread_id = 1, ret, thread_error = 0;
+				unsigned thread_count = 0, i, start_thread_id = 1;
+				int ret, thread_error = 0;
 				void *thread_return;
 
 				basefn = tarfn;