diff --git a/port/libusb/Makefile b/port/libusb/Makefile
index 341d4bf20..085b076d1 100644
--- a/port/libusb/Makefile
+++ b/port/libusb/Makefile
@@ -37,8 +37,8 @@ csr_set_bd_addr: ${CORE_OBJ} ${COMMON_OBJ} btstack_chipset_csr.o csr_set_bd_addr
 
 
 # use pkg-config for portaudio
-CFLAGS  += $(shell pkg-config portaudio-2.0 --cflags) -DHAVE_PORTAUDIO
-LDFLAGS += $(shell pkg-config portaudio-2.0 --libs)
+# CFLAGS  += $(shell pkg-config portaudio-2.0 --cflags) -DHAVE_PORTAUDIO
+# LDFLAGS += $(shell pkg-config portaudio-2.0 --libs)
 
 # hard coded flags for portaudio in /usr/local/lib
 # CFLAGS  += -I/usr/local/include -DHAVE_PORTAUDIO