1 files changed, 1 insertions, 1 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index f9dee2a9..25a7eaf4 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -75,7 +75,7 @@ libproj_la_SOURCES = \
 	pj_strtod.c \
 	\
 	pj_obs_api.c PJ_cart.c PJ_pipeline.c PJ_horner.c PJ_helmert.c \
-	PJ_vgridshift.c PJ_hgridshift.c
+	PJ_vgridshift.c PJ_hgridshift.c PJ_unitconvert.c
 
 install-exec-local:
 	rm -f $(DESTDIR)$(bindir)/invproj$(EXEEXT)