diff --git a/src/syscall/mksyscall_windows.go b/src/syscall/mksyscall_windows.go
index cb540d3956..d4c09273d6 100644
--- a/src/syscall/mksyscall_windows.go
+++ b/src/syscall/mksyscall_windows.go
@@ -736,6 +736,8 @@ package {{packagename}}
 import "unsafe"{{if syscalldot}}
 import "syscall"{{end}}
 
+var _ unsafe.Pointer
+
 var (
 {{template "dlls" .}}
 {{template "funcnames" .}})
diff --git a/src/syscall/zsyscall_windows.go b/src/syscall/zsyscall_windows.go
index 9c15cf1a1c..ba62499f4e 100644
--- a/src/syscall/zsyscall_windows.go
+++ b/src/syscall/zsyscall_windows.go
@@ -4,6 +4,8 @@ package syscall
 
 import "unsafe"
 
+var _ unsafe.Pointer
+
 var (
 	modkernel32 = NewLazyDLL("kernel32.dll")
 	modadvapi32 = NewLazyDLL("advapi32.dll")