diff --git a/src/bun.js/node/types.zig b/src/bun.js/node/types.zig
index 9eb9224fa0..a1cf3208c3 100644
--- a/src/bun.js/node/types.zig
+++ b/src/bun.js/node/types.zig
@@ -971,7 +971,7 @@ pub const FileSystemFlags = enum(Mode) {
 
         if (val.isNumber()) {
             const number = val.toInt32();
-            if (!(number > 0o000 and number < 0o777)) {
+            if (!(number >= 0o000 and number <= 0o777)) {
                 JSC.throwInvalidArguments(
                     "Invalid integer mode: must be a number between 0o000 and 0o777",
                     .{},