diff --git a/src/Drivers/Gd/GdDriver.php b/src/Drivers/Gd/GdDriver.php
index 87589e3..90b211d 100644
--- a/src/Drivers/Gd/GdDriver.php
+++ b/src/Drivers/Gd/GdDriver.php
@@ -153,20 +153,20 @@ public function save(?string $path = null): static
             case 'jpg':
             case 'jpeg':
             case 'jfif':
-                imagejpeg($this->image, $path, $this->quality);
+                \imagejpeg($this->image, $path, $this->quality);
                 break;
             case 'png':
-                imagepng($this->image, $path, $this->pngCompression());
+                \imagepng($this->image, $path, $this->pngCompression());
                 break;
             case 'gif':
-                imagegif($this->image, $path);
+                \imagegif($this->image, $path);
                 break;
             case 'webp':
                 $quality = $this->quality === 100 ? IMG_WEBP_LOSSLESS : $this->quality;
-                imagewebp($this->image, $path, $quality);
+                \imagewebp($this->image, $path, $quality);
                 break;
             case 'avif':
-                imageavif($this->image, $path, $this->quality);
+                \imageavif($this->image, $path, $this->quality);
                 break;
             default:
                 throw UnsupportedImageFormat::make($extension);
@@ -188,19 +188,19 @@ public function base64(string $imageFormat = 'jpeg', bool $prefixWithFormat = tr
             case 'jpg':
             case 'jpeg':
             case 'jfif':
-                imagejpeg($this->image, null, $this->quality);
+                \imagejpeg($this->image, null, $this->quality);
                 break;
             case 'png':
-                imagepng($this->image, null, $this->pngCompression());
+                \imagepng($this->image, null, $this->pngCompression());
                 break;
             case 'gif':
-                imagegif($this->image, null);
+                \imagegif($this->image, null);
                 break;
             case 'webp':
-                imagewebp($this->image, null);
+                \imagewebp($this->image, null);
                 break;
             case 'avif':
-                imageavif($this->image, null);
+                \imageavif($this->image, null);
                 break;
             default:
                 throw UnsupportedImageFormat::make($imageFormat);