diff --git a/tasklite-core/source/Lib.hs b/tasklite-core/source/Lib.hs
index e68f6c3..9e7ce24 100644
--- a/tasklite-core/source/Lib.hs
+++ b/tasklite-core/source/Lib.hs
@@ -1692,7 +1692,17 @@ deleteTag conf connection tag ids = do
         , ":tag" := tag
         ]
 
-      pure $ getResultMsg ("💥 Removed tag \"" <> pretty tag <> "\"") task
+      numOfChanges <- changes connection
+
+      pure $
+        if numOfChanges == 0
+          then
+            annotate (color Yellow) $
+              "⚠️  Tag"
+                <+> dquotes (pretty tag)
+                <+> "is not set for task"
+                <+> dquotes (pretty task.ulid)
+          else getResultMsg ("💥 Removed tag \"" <> pretty tag <> "\"") task
 
   pure $ vsep docs
 
diff --git a/tasklite-core/test/Spec.hs b/tasklite-core/test/Spec.hs
index fc8e574..526b960 100644
--- a/tasklite-core/test/Spec.hs
+++ b/tasklite-core/test/Spec.hs
@@ -207,6 +207,12 @@ testSuite conf now = do
             query_ memConn "SELECT * FROM task_to_tag"
           taskToTags `shouldBe` []
 
+      it "doesn't delete a tag that does not exist" $ do
+        withMemoryDb conf $ \memConn -> do
+          insertRecord "tasks" memConn exampleTask
+          delResult <- deleteTag conf memConn "test" [exampleTask.ulid]
+          unpack (show delResult) `shouldContain` "not set"
+
       it "adds a note" $ do
         withMemoryDb conf $ \memConn -> do
           insertRecord "tasks" memConn exampleTask