diff --git a/db-service/lib/cqn2sql.js b/db-service/lib/cqn2sql.js
index 77d680f1a..ac41b0236 100644
--- a/db-service/lib/cqn2sql.js
+++ b/db-service/lib/cqn2sql.js
@@ -423,8 +423,8 @@ class CQN2SQLRenderer {
         ? c =>
           this.expr(c) +
           (c.element?.[this.class._localized] ? ' COLLATE NOCASE' : '') +
-          (c.sort === 'desc' || c.sort === -1 ? ' DESC' : ' ASC')
-        : c => this.expr(c) + (c.sort === 'desc' || c.sort === -1 ? ' DESC' : ' ASC'),
+          (c.sort?.toLowerCase() === 'desc' || c.sort === -1 ? ' DESC' : ' ASC')
+        : c => this.expr(c) + (c.sort?.toLowerCase() === 'desc' || c.sort === -1 ? ' DESC' : ' ASC'),
     )
   }
 
diff --git a/hana/lib/HANAService.js b/hana/lib/HANAService.js
index 7d7f57cfe..3a8ba7444 100644
--- a/hana/lib/HANAService.js
+++ b/hana/lib/HANAService.js
@@ -791,8 +791,8 @@ SELECT ${mixing} FROM JSON_TABLE(SRC.JSON, '$' COLUMNS(${extraction})) AS NEW LE
               ? ` COLLATE ${collations[this.context.locale] || collations[this.context.locale.split('_')[0]] || collations['']
               }`
               : '') +
-            (c.sort === 'desc' || c.sort === -1 ? ' DESC' : ' ASC')
-          : c => this.expr(c) + (c.sort === 'desc' || c.sort === -1 ? ' DESC' : ' ASC'),
+            (c.sort?.toLowerCase() === 'desc' || c.sort === -1 ? ' DESC' : ' ASC')
+          : c => this.expr(c) + (c.sort?.toLowerCase() === 'desc' || c.sort === -1 ? ' DESC' : ' ASC'),
       )
     }
 
diff --git a/postgres/lib/PostgresService.js b/postgres/lib/PostgresService.js
index a1093c776..80f909f37 100644
--- a/postgres/lib/PostgresService.js
+++ b/postgres/lib/PostgresService.js
@@ -348,8 +348,8 @@ GROUP BY k
           ? c =>
             this.expr(c) +
             (c.element?.[this.class._localized] ? ` COLLATE "${locale}"` : '') +
-            (c.sort === 'desc' || c.sort === -1 ? ' DESC NULLS LAST' : ' ASC NULLS FIRST')
-          : c => this.expr(c) + (c.sort === 'desc' || c.sort === -1 ? ' DESC NULLS LAST' : ' ASC NULLS FIRST'),
+            (c.sort?.toLowerCase() === 'desc' || c.sort === -1 ? ' DESC NULLS LAST' : ' ASC NULLS FIRST')
+          : c => this.expr(c) + (c.sort?.toLowerCase() === 'desc' || c.sort === -1 ? ' DESC NULLS LAST' : ' ASC NULLS FIRST'),
       )
     }
 
diff --git a/test/compliance/SELECT.test.js b/test/compliance/SELECT.test.js
index 5083391fd..f585220ad 100644
--- a/test/compliance/SELECT.test.js
+++ b/test/compliance/SELECT.test.js
@@ -569,6 +569,18 @@ describe('SELECT', () => {
       assert.deepEqual(res, sorted, 'Ensure that all rows are in the correct order')
     })
 
+    test('sort is case insensitive', async () => {
+      const { string } = cds.entities('basic.literals')
+      const mixedDesc = SELECT.from(string).columns('string').orderBy('string DeSc')
+      const desc = SELECT.from(string).columns('string').orderBy('string desc')
+      const mixedAsc = SELECT.from(string).columns('string').orderBy('string aSC')
+      const asc = SELECT.from(string).columns('string').orderBy('string asc')
+      
+      expect(await cds.run(mixedDesc)).to.eql(await cds.run(desc))
+      expect(await cds.run(mixedAsc)).to.eql(await cds.run(asc))
+    })
+
+
     test('localized', async () => {
       const { string } = cds.entities('basic.literals')
       const cqn = CQL`SELECT string FROM ${string} ORDER BY string`