--- a/src/PasswordCracker.cc	2021-04-18 23:56:17.000000000 +0200
+++ b/src/PasswordCracker.cc	2021-12-18 02:44:51.013572242 +0100
@@ -58,7 +58,7 @@
     // Add n worker threads
     // A part must have at least len 1, otherwise no words will be read when
     // threads > size
-    unsigned long part = std::max(wordlistStats.st_size / threads, 1L);
+    unsigned long part = std::max(wordlistStats.st_size / threads, 1LU);
     for (unsigned int i = 0; i < threads; i++) {
         ThreadPool.push_back(std::thread([this, i, part, metricsEnabled] {
             consume(i * part, (i + 1) * part, metricsEnabled);