diff --git a/lib/OfxParser/Parser.php b/lib/OfxParser/Parser.php
index 23609fd..7059e5c 100644
--- a/lib/OfxParser/Parser.php
+++ b/lib/OfxParser/Parser.php
@@ -140,6 +140,8 @@ private function parseHeader($ofxHeader)
             $ofxHeaderLine = explode(' ', trim($ofxHeaderLines[1]));
 
             foreach ($ofxHeaderLine as $value) {
+                 if ($value == null)
+                    break;
                 $tag = explode('=', $value);
                 $header[$tag[0]] = $tag[1];
             }