diff --git a/python/vcfReader.py b/python/vcfReader.py
index 6eaa5b8f2..e793f8aae 100755
--- a/python/vcfReader.py
+++ b/python/vcfReader.py
@@ -54,7 +54,7 @@ class VCFRecord:
 def parseInfo(s):
     def handleBoolean(key_val):
         if len(key_val) == 1:
-            return [key_val[0], True]
+            return [key_val[0], 1]
         else:
             return key_val