diff --git a/libvorbis/examples/Makefile.am b/libvorbis/examples/Makefile.am
index 5881635..6b3be7c 100644
--- a/libvorbis/examples/Makefile.am
+++ b/libvorbis/examples/Makefile.am
@@ -13,7 +13,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/include @OGG_CFLAGS@
 #LDFLAGS = -all-static 
 
 decoder_example_SOURCES = decoder_example.c
-decoder_example_LDADD = $(top_builddir)/lib/libvorbis.la @OGG_LIBS@
+decoder_example_LDADD = $(top_builddir)/lib/libvorbis.la @OGG_LIBS@ -lm
 
 encoder_example_SOURCES = encoder_example.c
 encoder_example_LDADD = $(top_builddir)/lib/libvorbisenc.la $(top_builddir)/lib/libvorbis.la @OGG_LIBS@
diff --git a/libvorbis/test/Makefile.am b/libvorbis/test/Makefile.am
index b68ebdb..6ca7a22 100644
--- a/libvorbis/test/Makefile.am
+++ b/libvorbis/test/Makefile.am
@@ -10,7 +10,7 @@ check: $(check_PROGRAMS)
 AM_CPPFLAGS = -I$(top_srcdir)/include @OGG_CFLAGS@
 
 test_SOURCES = util.c util.h write_read.c write_read.h test.c
-test_LDADD = ../lib/libvorbisenc.la ../lib/libvorbis.la @OGG_LIBS@ @VORBIS_LIBS@
+test_LDADD = ../lib/libvorbisenc.la ../lib/libvorbis.la @OGG_LIBS@ @VORBIS_LIBS@ -lm
 
 debug:
 	$(MAKE) check CFLAGS="@DEBUG@"