X-Git-Url: http://rtime.felk.cvut.cz/gitweb/notmuch.git/blobdiff_plain/f7a7f78aebd7f0571cad7f4813ef18dac5247c73..16bf7b4b89b5ceb7f13ed318051ecd7c629d582b:/devel/nmbug/nmbug

diff --git a/devel/nmbug/nmbug b/devel/nmbug/nmbug
index b9c70e4b..90d98b63 100755
--- a/devel/nmbug/nmbug
+++ b/devel/nmbug/nmbug
@@ -13,7 +13,7 @@ my $NMBGIT = $ENV{NMBGIT} || $ENV{HOME}.'/.nmbug';
 
 $NMBGIT .= '/.git' if (-d $NMBGIT.'/.git');
 
-my $TAGPREFIX = $ENV{NMBPREFIX} || 'notmuch::';
+my $TAGPREFIX = defined($ENV{NMBPREFIX}) ? $ENV{NMBPREFIX} : 'notmuch::';
 
 # for encoding