diff --git a/src/sysinfo.h b/src/sysinfo.h
index 75f5f4c0a..627e24585 100644
--- a/src/sysinfo.h
+++ b/src/sysinfo.h
@@ -13,7 +13,7 @@ typedef void* CNetworks;
 typedef void* CDisks;
 
 #ifdef WIN32
-typedef uint32_t PID;
+typedef size_t PID;
 #else
 typedef pid_t PID;
 #endif