diff --git a/libs/portaudio/Makefile.am b/libs/portaudio/Makefile.am
index a841e0f8f5ee516cce72d8c9176f41d0b81d45c0..d6ef1faf280ffb6949845a33cab7055a26dffe66 100644
--- a/libs/portaudio/Makefile.am
+++ b/libs/portaudio/Makefile.am
@@ -1,8 +1,8 @@
 noinst_LTLIBRARIES = libportaudio.la
-libportaudio_la_CFLAGS = $(PORTAUDIO_CFLAGS) 
+libportaudio_la_CFLAGS = $(PORTAUDIO_CFLAGS)  -Ipa_common/ 
 libportaudio_la_LIBADD = $(PORTAUDIO_LIBS)
 libportaudio_la_CXXFLAGS = $(PORTAUDIO_CXXFLAGS)
-libportaudio_la_CPPFLAGS = $(PORTAUDIO_CPPFLAGS) 
+libportaudio_la_CPPFLAGS = $(PORTAUDIO_CPPFLAGS)
 
 
 if ENABLE_OSS