diff --git a/modules/codec/Makefile.am b/modules/codec/Makefile.am
index 13a6e1ea38989a6f0547f63bb09cbeb4ea2c0058..b11d7de38a8b8fc2ba5eb3071b46482887a9cdea 100644
--- a/modules/codec/Makefile.am
+++ b/modules/codec/Makefile.am
@@ -390,7 +390,7 @@ EXTRA_LTLIBRARIES += libshine_plugin.la
 codec_LTLIBRARIES += $(LTLIBshine)
 
 libtwolame_plugin_la_SOURCES = codec/twolame.c
-libtwolame_plugin_la_CPPFLAGS = $(AM_CPPFLAGS)
+libtwolame_plugin_la_CPPFLAGS = $(AM_CPPFLAGS) -DLIBTWOLAME_STATIC
 libtwolame_plugin_la_CFLAGS = $(AM_CFLAGS) $(TWOLAME_CFLAGS)
 libtwolame_plugin_la_LDFLAGS = $(AM_LDFLAGS) -rpath '$(codecdir)'
 libtwolame_plugin_la_LIBADD = $(TWOLAME_LIBS) $(LIBM)