diff --git a/skeletons/tests/Makefile.am b/skeletons/tests/Makefile.am
index 7af5843..eb1f018 100644
--- a/skeletons/tests/Makefile.am
+++ b/skeletons/tests/Makefile.am
@@ -9,4 +9,6 @@
 	check-INTEGER		\
 	check-REAL
 
+LDADD = -lm
+
 TESTS = $(check_PROGRAMS)