diff --git a/Source/Core/DiscIO/Volume.h b/Source/Core/DiscIO/Volume.h
index 813222bb6f..6efe04a37f 100644
--- a/Source/Core/DiscIO/Volume.h
+++ b/Source/Core/DiscIO/Volume.h
@@ -8,6 +8,7 @@
 #include <string>
 #include <vector>
 
+#include "Common/CommonFuncs.h"
 #include "Common/CommonTypes.h"
 
 namespace DiscIO