diff --git a/src/common/interfaces/ICpuInfo.h b/src/common/interfaces/ICpuInfo.h
index c959bf52..267616d0 100644
--- a/src/common/interfaces/ICpuInfo.h
+++ b/src/common/interfaces/ICpuInfo.h
@@ -24,6 +24,7 @@
 #define XMRIG_CPUINFO_H
 
 
+#include <stddef.h>
 #include <stdint.h>