diff --git a/cmd/fs_mgmt/port/zephyr/src/zephyr_fs_mgmt.c b/cmd/fs_mgmt/port/zephyr/src/zephyr_fs_mgmt.c
index 66af8c4..f3eb2e4 100644
--- a/cmd/fs_mgmt/port/zephyr/src/zephyr_fs_mgmt.c
+++ b/cmd/fs_mgmt/port/zephyr/src/zephyr_fs_mgmt.c
@@ -49,9 +49,9 @@
     ssize_t bytes_read;
     int rc;
 
-    rc = fs_open(&file, path);
+    rc = fs_open(&file, path, FS_O_READ);
     if (rc != 0) {
-        return MGMT_ERR_EUNKNOWN;
+        return MGMT_ERR_ENOENT;
     }
 
     rc = fs_seek(&file, offset, FS_SEEK_SET);
@@ -123,7 +123,7 @@
         }
     }
 
-    rc = fs_open(&file, path);
+    rc = fs_open(&file, path, FS_O_CREATE | FS_O_WRITE);
     if (rc != 0) {
         return MGMT_ERR_EUNKNOWN;
     }