diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3917f4045..1aff3db4f6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,10 @@
 - Fix `%external` extension. https://github.com/rescript-lang/rescript/pull/7272
 - Fix issue with type environment for unified ops. https://github.com/rescript-lang/rescript/pull/7277
 
+#### :house: Internal
+
+- Remove ignore in res_scanner.ml . https://github.com/rescript-lang/rescript/pull/7280
+
 # 12.0.0-alpha.8
 
 #### :bug: Bug fix
diff --git a/compiler/syntax/src/res_scanner.ml b/compiler/syntax/src/res_scanner.ml
index 613d273d6c..3803d2d132 100644
--- a/compiler/syntax/src/res_scanner.ml
+++ b/compiler/syntax/src/res_scanner.ml
@@ -257,13 +257,13 @@ let scan_number scanner =
         8)
     | _ -> 10
   in
-  ignore (scan_digits scanner ~base);
+  let _ : bool = scan_digits scanner ~base in
 
   (*  *)
   let is_float =
     if '.' == scanner.ch then (
       next scanner;
-      ignore (scan_digits scanner ~base);
+      let _ : bool = scan_digits scanner ~base in
       true)
     else false
   in