diff --git a/Kernel/VM/PurgeablePageRanges.cpp b/Kernel/VM/PurgeablePageRanges.cpp
index 09927d7ec4..0782daef5b 100644
--- a/Kernel/VM/PurgeablePageRanges.cpp
+++ b/Kernel/VM/PurgeablePageRanges.cpp
@@ -25,6 +25,7 @@
  */
 
 #include <AK/BinarySearch.h>
+#include <AK/ScopeGuard.h>
 #include <Kernel/Debug.h>
 #include <Kernel/Process.h>
 #include <Kernel/VM/AnonymousVMObject.h>