diff --git a/lib/parser.js b/lib/parser.js
index ca148d1..fb60cf3 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -46,7 +46,7 @@ function parse (input) {
   }
 
   if (headerParts.length > 1 && headerParts[1] !== '') {
-    throw new ParserError('No blank line after signature');
+    throw new ParserError('Missing blank line after signature');
   }
 
   const cues = parseCues(parts);