diff --git a/genversion.py b/genversion.py
index c2dc8c01..a53544bd 100755
--- a/genversion.py
+++ b/genversion.py
@@ -47,10 +47,10 @@ def __init__(self, major, minor, patch, miniPatch=None):
     def toString(self):
         ret = "{0}.{1}".format(self.major, self.minor)
 
-        if self.patch or self.miniPatch:
+        if self.patch is not None:
             ret += ".{0}".format(self.patch)
 
-        if self.miniPatch:
+        if self.miniPatch is not None:
             ret += ".{0}".format(self.miniPatch)
 
         return ret