--- a/python/Makefile
+++ b/python/Makefile
@@ -10,7 +10,7 @@
 CXX           = g++
 DEFINES       = -D=WITH_ZLIB -D=WITH_CHOLMOD -D=__4HAERTEL__ -D=WITH_FAMOS #-D=WITH_FEF -D=WITH_DICOM #-D=WITH_GDCM #-D=WITH_GSL #-D=WITH_EEPROBE #-D=SOFTCODED_PHYSDIMTABLE # if you have zlib
 CXXFLAGS      =  -pipe -fPIC -Wall -O2 -Wextra $(DEFINES) # -I cntopenlib/include/
-LIBS          = ../libbiosig.a -lz -lcholmod # t240/libfef.a #-lgdcmDSED -lgsl -lgslcblas -lm	# static
+LIBS          = ../libbiosig.so -lz -lcholmod # t240/libfef.a #-lgdcmDSED -lgsl -lgslcblas -lm	# static
 SWIG          = swig
 # To allow using arbitrary python
 PYTHON		  = python
@@ -25,11 +25,11 @@ COPY          = cp -f
 TARGET = biosig4python
 first: $(TARGET)
 
-../libbiosig.a:
-	make -C .. libbiosig.a
+../libbiosig.so:
+	make -C .. libbiosig.so
 
 biosig4python: _biosig.so biosig.py
-biosig.py swig_wrap.cxx: ../libbiosig.a swig.i 
+biosig.py swig_wrap.cxx: ../libbiosig.so swig.i 
 	$(SWIG) -c++ -python -I/usr/include -I$(NUMPY_INC) -o swig_wrap.cxx swig.i
 
 _biosig.so : swig_wrap.cxx 
