diff --git a/nglib/Makefile.am b/nglib/Makefile.am
index 3d5ecb3d..3b064b96 100644
--- a/nglib/Makefile.am
+++ b/nglib/Makefile.am
@@ -24,8 +24,8 @@ bin_PROGRAMS = ng_vol ng_stl
 #  ng_occ
 
 ng_vol_SOURCES = ng_vol.cpp
-ng_vol_LDADD = \
-	libnglib.la 
+ng_vol_LDADD = $(top_builddir)/nglib/libnglib.la 
+
 ng_stl_SOURCES = ng_stl.cpp
 ng_stl_LDADD = \
 	libnglib.la