diff --git a/Makefile b/Makefile
index 02a319e..459712e 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,6 @@ SPHINXAPIDOC   = sphinx-apidoc
 PAPER          =
 BUILDDIR       = _build
 RSTDIR         = source
-PKGNAME        = hdmf-schema-language
 
 # Internal variables.
 PAPEROPT_a4     = -D latex_paper_size=a4