diff --git a/src/mod/codecs/mod_speex/Makefile b/src/mod/codecs/mod_speex/Makefile
index e21eeda339..b0cbef2909 100644
--- a/src/mod/codecs/mod_speex/Makefile
+++ b/src/mod/codecs/mod_speex/Makefile
@@ -5,7 +5,7 @@ SPEEX_BUILDDIR=$(switch_builddir)/libs/speex
 SPEEXLA=$(SPEEX_BUILDDIR)/libspeex/libspeex.la
 SPEEXDSPLA=$(SPEEX_BUILDDIR)/libspeex/libspeexdsp.la
 
-LOCAL_CFLAGS=-I$(SPEEX_DIR)/include
+LOCAL_CFLAGS=-I$(SPEEX_DIR)/include -I$(SPEEX_BUILDDIR)/include
 LOCAL_LIBADD=$(SPEEXLA) $(SPEEXDSPLA)
 include $(BASE)/build/modmake.rules