diff --git a/src/mod/applications/mod_avmd/Makefile.am b/src/mod/applications/mod_avmd/Makefile.am
index 885cb6be3c..3b68856523 100644
--- a/src/mod/applications/mod_avmd/Makefile.am
+++ b/src/mod/applications/mod_avmd/Makefile.am
@@ -4,5 +4,5 @@ MODNAME=mod_avmd
 mod_LTLIBRARIES = mod_avmd.la
 mod_avmd_la_SOURCES  = mod_avmd.c avmd_buffer.c avmd_desa2_tweaked.c avmd_fast_acosf.c
 mod_avmd_la_CFLAGS   = $(AM_CFLAGS) $(AM_MOD_AVMD_CXXFLAGS)
-mod_avmd_la_LIBADD   = $(switch_builddir)/libfreeswitch.la
+mod_avmd_la_LIBADD   = $(switch_builddir)/libfreeswitch.la -lm
 mod_avmd_la_LDFLAGS  = -avoid-version -module -no-undefined -shared