diff --git a/dlls/ntdll/file.c b/dlls/ntdll/file.c
index 1d31582..bea4e0f 100644
--- a/dlls/ntdll/file.c
+++ b/dlls/ntdll/file.c
@@ -2012,7 +2012,7 @@ NTSTATUS WINAPI NtQueryAttributesFile( const OBJECT_ATTRIBUTES *attr, FILE_BASIC
 }
 
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__APPLE__)
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
 /* helper for FILE_GetDeviceInfo to hide some platform differences in fstatfs */
 static inline void get_device_info_fstatfs( FILE_FS_DEVICE_INFORMATION *info, const char *fstypename,
                                             unsigned int flags )
@@ -2133,7 +2133,7 @@ static NTSTATUS get_device_info( int fd, FILE_FS_DEVICE_INFORMATION *info )
             info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
             break;
         }
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__)
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__APPLE__)
         struct statfs stfs;
 
         if (fstatfs( fd, &stfs ) < 0)