diff --git a/src/mod/codecs/mod_g729/Makefile b/src/mod/codecs/mod_g729/Makefile
index 0b47c55915..ad8c52540c 100644
--- a/src/mod/codecs/mod_g729/Makefile
+++ b/src/mod/codecs/mod_g729/Makefile
@@ -1,9 +1,13 @@
+ifeq ($(shell ls $(BASE)/libs/libg729),$(BASE)/libs/libg729)
 
-
-CFLAGS += -I$(PREFIX)/include/libg729
+CFLAGS += -I$(PREFIX)/include/g729
 LDFLAGS +=-lg729
 
+else
 
+CFLAGS += -DG729_PASSTHROUGH
+
+endif
 
 all:	$(MODNAME).$(DYNAMIC_LIB_EXTEN)