diff --git a/jtag/src/Makefile.am b/jtag/src/Makefile.am
index 66691cf0..bc8b4a20 100644
--- a/jtag/src/Makefile.am
+++ b/jtag/src/Makefile.am
@@ -63,6 +63,7 @@ jtag_LDADD = \
 	-L../libbrux -lbrux \
 	-Lbus -lbus \
 	-Lsvf -lsvf \
+	-lm \
 	@LIBINTL@
 
 localedir = $(datadir)/locale