1 files changed, 2 insertions, 2 deletions
diff --git a/gr-qtgui/lib/waterfall_sink_c_impl.cc b/gr-qtgui/lib/waterfall_sink_c_impl.cc
index e8ee43525d..ac9e1e95ad 100644
--- a/gr-qtgui/lib/waterfall_sink_c_impl.cc
+++ b/gr-qtgui/lib/waterfall_sink_c_impl.cc
@@ -76,7 +76,7 @@ waterfall_sink_c_impl::waterfall_sink_c_impl(int fftsize,
     // this is usually desired when plotting
     d_shift = true;
 
-    d_fft = new fft::fft_complex(d_fftsize, true);
+    d_fft = new fft::fft_complex_fwd(d_fftsize);
     d_fbuf = (float*)volk_malloc(d_fftsize * sizeof(float), volk_get_alignment());
     memset(d_fbuf, 0, d_fftsize * sizeof(float));
 
@@ -384,7 +384,7 @@ void waterfall_sink_c_impl::fftresize()
 
         // Reset FFTW plan for new size
         delete d_fft;
-        d_fft = new fft::fft_complex(d_fftsize, true);
+        d_fft = new fft::fft_complex_fwd(d_fftsize);
 
         d_fft_shift.resize(d_fftsize);