diff --git a/Source/Core/Common/Src/CPUDetect.h b/Source/Core/Common/Src/CPUDetect.h
index 9dd7a46919..03f379d978 100644
--- a/Source/Core/Common/Src/CPUDetect.h
+++ b/Source/Core/Common/Src/CPUDetect.h
@@ -17,6 +17,8 @@
 
 #ifndef _CPUDETECT_H
 #define _CPUDETECT_H
+
+#include <string>
 
 enum CPUVendor
 {