diff --git a/src/pal/pal_noalloc.h b/src/pal/pal_noalloc.h
index e973db316..2d6b6a578 100644
--- a/src/pal/pal_noalloc.h
+++ b/src/pal/pal_noalloc.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <string.h>
+
 namespace snmalloc
 {
   /**
diff --git a/src/pal/pal_windows.h b/src/pal/pal_windows.h
index bd53d10c1..5615c150a 100644
--- a/src/pal/pal_windows.h
+++ b/src/pal/pal_windows.h
@@ -3,6 +3,8 @@
 #include "../ds/address.h"
 #include "../ds/bits.h"
 
+#include <utility>
+
 #ifdef _WIN32
 #  ifndef _MSC_VER
 #    include <cstdio>