diff --git a/CHANGELOG.md b/CHANGELOG.md
index 089aa3a..f3638b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## Unreleased
+
+### Fixed
+- Fixed bug encountered when using pre-defined image transforms. ([#43](https://github.com/doublesecretagency/craft-adwizard/issues/43))
+
 ## 3.4.0 - 2024-05-29
 
 ### Added
diff --git a/src/models/Config.php b/src/models/Config.php
index 758802f..e2cd455 100644
--- a/src/models/Config.php
+++ b/src/models/Config.php
@@ -147,35 +147,27 @@ private function _parseJs(): void
     /**
      * Process transform
      *
-     * @throws NotFoundHttpException
      * @throws InvalidConfigException
+     * @throws NotFoundHttpException
      */
     private function _parseTransform(): void
     {
-        if (is_string($this->image['transform'])) {
-
-            // Get pre-defined transform
-            $transform = clone Craft::$app->getAssetTransforms()->getTransformByHandle($this->image['transform']);
-
-            if (!$transform) {
-                throw new NotFoundHttpException('Transform not found');
+        // If a transform was specified
+        if ($this->image['transform']) {
+
+            // If transform is a string
+            if (is_string($this->image['transform'])) {
+                // Get pre-defined transform
+                $transform = $this->image['transform'];
+            // Else if transform is an array
+            } else if (is_array($this->image['transform'])) {
+                // Get dynamic transform
+                $transform = new ImageTransform($this->image['transform']);
+            } else {
+                // Invalid transform
+                throw new NotFoundHttpException('Invalid transform format, please use a string or array.');
             }
 
-        } else if (is_array($this->image['transform']) && !empty($this->image['transform'])) {
-
-            // Get dynamic transform
-            $transform = new ImageTransform($this->image['transform']);
-
-        } else {
-
-            // No transform
-            $transform = false;
-
-        }
-
-        // If transform exists
-        if ($transform) {
-
             // Apply transform
             $url    = $this->asset->getUrl($transform);
             $width  = $this->asset->getWidth($transform);