diff --git a/driver/platform/osal/linux/osal_fileops.c b/driver/platform/osal/linux/osal_fileops.c
index df127bf..f8a8672 100644
--- a/driver/platform/osal/linux/osal_fileops.c
+++ b/driver/platform/osal/linux/osal_fileops.c
@@ -94,7 +94,7 @@ static int klib_fwrite(const char *buf, unsigned long size, struct file *filp)
     old_fs = os_get_fs();
     os_set_ds();
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
     writelen = vfs_write(filp, (void __user *)buf, size, &filp->f_pos);
 #else
     writelen = kernel_write(filp, (void __user *)buf, size, &filp->f_pos);
@@ -117,7 +117,7 @@ static int klib_fread(char *buf, unsigned long size, struct file *filp)
     os_set_ds();
 
     /* The cast to a user pointer is valid due to the set_fs() */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
     readlen = vfs_read(filp, (void __user *)buf, size, &filp->f_pos);
 #else
     readlen = kernel_read(filp, (void __user *)buf, size, &filp->f_pos);