diff --git a/.github/workflows/pr_labeler.yml b/.github/workflows/pr_labeler.yml
index c5c9d27b3b5349f72e81e50413bcd333217bc2fd..9ea703854329fc337711a5e850e796f8d4999ba6 100644
--- a/.github/workflows/pr_labeler.yml
+++ b/.github/workflows/pr_labeler.yml
@@ -37,6 +37,7 @@ jobs:
               '11happy',
               'AidanV',
               'AmaanBilwar',
+              'MostlyKIGuess',
               'OmChillure',
               'Palanikannan1437',
               'Shivansh-25',
@@ -60,7 +61,6 @@ jobs:
               'loadingalias',
               'marcocondrache',
               'mchisolm0',
-              'mostlyKIGuess',
               'nairadithya',
               'nihalxkumar',
               'notJoon',
@@ -114,7 +114,11 @@ jobs:
               return;
             }
 
-            if (GUILD_MEMBERS.includes(author)) {
+            const authorLower = author.toLowerCase();
+            const isGuildMember = GUILD_MEMBERS.some(
+              (member) => member.toLowerCase() === authorLower
+            );
+            if (isGuildMember) {
               await github.rest.issues.addLabels({
                 owner: context.repo.owner,
                 repo: context.repo.repo,