diff --git a/src/WrkLst/DocxMustache/DocxMustache.php b/src/WrkLst/DocxMustache/DocxMustache.php
index 53fdb06..40acb36 100644
--- a/src/WrkLst/DocxMustache/DocxMustache.php
+++ b/src/WrkLst/DocxMustache/DocxMustache.php
@@ -480,12 +480,12 @@ public function SaveAsPdf()
             //wait until process is ready
         }
         // executes after the command finishes
-        if (!$process->isSuccessful()) {
+        if (! $process->isSuccessful()) {
             throw new \Symfony\Component\Process\Exception\ProcessFailedException($process);
         } else {
             $path_parts = pathinfo($this->StoragePath($this->local_path.$this->template_file_name));
 
-            return $this->StoragePath($this->local_path.$path_parts['filename'].'pdf');
+            return $this->StoragePath($this->local_path.$path_parts['filename'].'.pdf');
         }
     }
 }