diff --git a/m4/Makefile.am b/m4/Makefile.am
index c51250d8e9e6a5b9ce6ec04c887c151fd062430e..c012a103c50449d15afeac46bf96f9d55ef1351e 100644
--- a/m4/Makefile.am
+++ b/m4/Makefile.am
@@ -47,7 +47,7 @@ ALLM4S = 					\
 	opengl.m4				\
 	parmetis.m4				\
 	shared_ptr.m4				\
-        umfpack                                 \
+        umfpack.m4                              \
 	xdr.m4
 
 aclocaldir = $(datadir)/aclocal