diff --git a/src/pub.cpp b/src/pub.cpp
index 16994d5..3206e0d 100644
--- a/src/pub.cpp
+++ b/src/pub.cpp
@@ -10,6 +10,10 @@
 #include <unistd.h>
 #endif
 
+#ifndef PATH_MAX
+#define PATH_MAX 256
+#endif
+
 namespace fs = std::filesystem;
 
 CUtil::CUtil() = default;