diff --git a/makefile.alsa b/makefile.alsa
index 34fb848..cdaeaec 100644
--- a/makefile.alsa
+++ b/makefile.alsa
@@ -4,7 +4,7 @@ CPP=g++
 INCLUDES=-I../marsyas/
 MARSYAS_DIR=../marsyas/
 CFLAGS=-D__LINUX_ALSA__ -D__LITTLE_ENDIAN__ $(INCLUDES) -O3 -c
-LIBS=-L/usr/X11R6/lib -lglut -lGL -lGLU -lasound -lXmu -lX11 -lXext -lXi -lm -lsndfile
+LIBS=-L/usr/X11R6/lib -lglut -lGL -lGLU -lasound -lXmu -lX11 -lXext -lXi -lm -lsndfile -lpthread
 
 OBJS=chuck_fft.o RtAudio.o Thread.o sndpeek.o Stk.o \
 	Centroid.o DownSampler.o Flux.o LPC.o MFCC.o RMS.o Rolloff.o \