diff --git a/dlls/wow64/syscall.h b/dlls/wow64/syscall.h
index 0c2ba574031..a3af9174c49 100644
--- a/dlls/wow64/syscall.h
+++ b/dlls/wow64/syscall.h
@@ -97,6 +97,7 @@
     SYSCALL_ENTRY( NtGetNlsSectionPtr ) \
     SYSCALL_ENTRY( NtGetWriteWatch ) \
     SYSCALL_ENTRY( NtImpersonateAnonymousToken ) \
+    SYSCALL_ENTRY( NtInitializeNlsFiles ) \
     SYSCALL_ENTRY( NtInitiatePowerAction  ) \
     SYSCALL_ENTRY( NtIsProcessInJob ) \
     SYSCALL_ENTRY( NtListenPort ) \
diff --git a/dlls/wow64/virtual.c b/dlls/wow64/virtual.c
index fc470c07923..e89373f4239 100644
--- a/dlls/wow64/virtual.c
+++ b/dlls/wow64/virtual.c
@@ -208,6 +208,24 @@ NTSTATUS WINAPI wow64_NtGetWriteWatch( UINT *args )
 }
 
 
+/**********************************************************************
+ *           wow64_NtInitializeNlsFiles
+ */
+NTSTATUS WINAPI wow64_NtInitializeNlsFiles( UINT *args )
+{
+    ULONG *addr32 = get_ptr( &args );
+    LCID *lcid = get_ptr( &args );
+    LARGE_INTEGER *size = get_ptr( &args );
+
+    void *addr;
+    NTSTATUS status;
+
+    status = NtInitializeNlsFiles( addr_32to64( &addr, addr32 ), lcid, size );
+    if (!status) put_addr( addr32, addr );
+    return status;
+}
+
+
 /**********************************************************************
  *           wow64_NtLockVirtualMemory
  */