diff --git a/CMakeLists.txt b/CMakeLists.txt
index 664e68b..02aa527 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,8 +24,8 @@ add_definitions(-DLASP_MAX_NFFT=33554432) # 2**25
 add_definitions(-D_REENTRANT)
 
 # ############### Choose an fft backend here
-set(LASP_FFT_BACKEND fftpack)
-#set(LASP_FFT_BACKEND "fftw")
+# set(LASP_FFT_BACKEND fftpack)
+set(LASP_FFT_BACKEND "fftw")
 
 if(LASP_FFT_BACKEND STREQUAL "fftw")
     find_library(FFTW_LIBRARY NAMES fftw3 fftw)