diff --git a/includes/class-wc-regenerate-images-request.php b/includes/class-wc-regenerate-images-request.php
index 0fc08a18c0f..a6c7996fc24 100644
--- a/includes/class-wc-regenerate-images-request.php
+++ b/includes/class-wc-regenerate-images-request.php
@@ -241,7 +241,16 @@ class WC_Regenerate_Images_Request extends WC_Background_Process {
 	 * @return array
 	 */
 	public function adjust_intermediate_image_sizes( $sizes ) {
-		return apply_filters( 'woocommerce_regenerate_images_intermediate_image_sizes', array( 'woocommerce_thumbnail', 'woocommerce_gallery_thumbnail', 'woocommerce_single' ) );
+		// Prevent a filter loop.
+		$unfiltered_sizes = array( 'woocommerce_thumbnail', 'woocommerce_gallery_thumbnail', 'woocommerce_single' );
+		static $in_filter = false;
+		if ( $in_filter ) {
+			return $unfiltered_sizes;
+		}
+		$in_filter      = true;
+		$filtered_sizes = apply_filters( 'woocommerce_regenerate_images_intermediate_image_sizes', $unfiltered_sizes );
+		$in_filter      = false;
+		return $filtered_sizes;
 	}
 
 	/**