diff --git a/linphone/coreapi/Makefile.am b/linphone/coreapi/Makefile.am
index 467038d97..1d851b436 100644
--- a/linphone/coreapi/Makefile.am
+++ b/linphone/coreapi/Makefile.am
@@ -7,8 +7,7 @@ linphone_include_HEADERS=linphonecore.h ../config.h lpconfig.h sipsetup.h
 
 INCLUDES = \
 	-I$(top_srcdir)\
-	-I$(top_srcdir)/mediastreamer2/include \
-	$(ORTP_LIBS)
+	-I$(top_srcdir)/mediastreamer2/include
 
 
 lib_LTLIBRARIES=liblinphone.la