1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 649478c..68f9585 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ DTDS = book.dtd gleps.dtd glsa.dtd guide.dtd metadata.dtd metadoc.dtd	\
 DTDDEPS = $(patsubst %.dtd,%.dep,$(DTDS))
 RNCS = $(patsubst %.dtd,%.rnc,$(DTDS))
 
-ifdef ($(PV),)
+ifneq ($(PV),)
 PN=nxml-gentoo-schemas-$(PV)
 else
 PN=nxml-gentoo-schemas-$(shell date '+%Y%m%d')