diff --git a/doc/cookbook/examples/Makefile.am b/doc/cookbook/examples/Makefile.am
index 2a5b7ade8..054128f7b 100644
--- a/doc/cookbook/examples/Makefile.am
+++ b/doc/cookbook/examples/Makefile.am
@@ -58,7 +58,7 @@ INCLUDES = \
 	-I$(top_builddir)/clutter \
 	$(NULL)
 
-LDADD = $(top_builddir)/clutter/libclutter-@CLUTTER_API_VERSION@.la
+LDADD = $(top_builddir)/clutter/libclutter-@CLUTTER_API_VERSION@.la -lm
 
 AM_CFLAGS = $(CLUTTER_CFLAGS)