diff --git a/lib/fsk4hf/ft8_params.f90 b/lib/fsk4hf/ft8_params.f90
index 771222aeb..858e61e96 100644
--- a/lib/fsk4hf/ft8_params.f90
+++ b/lib/fsk4hf/ft8_params.f90
@@ -8,5 +8,5 @@ parameter (NZ=NSPS*NN)                !Samples in full 15 s waveform (151,680)
 parameter (NMAX=15*12000)             !Samples in iwave (180,000)
 parameter (NFFT1=2*NSPS, NH1=NFFT1/2) !Length of FFTs for symbol spectra
 parameter (NSTEP=NSPS/4)              !Rough time-sync step size
-parameter (NHSYM=NMAX/NSTEP-3)        !Number of symbol spectra (1/2-sym steps)
+parameter (NHSYM=NMAX/NSTEP-3)        !Number of symbol spectra (1/4-sym steps)
 parameter (NDOWN=60)                  !Downsample factor