diff --git a/src/EXECS/Heis_Fourier_to_Sqt.cc b/src/EXECS/Heis_Fourier_to_Sqt.cc
index 5d70543..3a06614 100644
--- a/src/EXECS/Heis_Fourier_to_Sqt.cc
+++ b/src/EXECS/Heis_Fourier_to_Sqt.cc
@@ -66,7 +66,7 @@ int main(int argc, char* argv[])
 
     while (RAW_infile.peek() != EOF) {
       RAW_infile >> omega >> iK >> FF >> dev >> label;
-      for (int it = 0; it < Npts_t; ++it)
+      for (int it = 0; it <= Npts_t; ++it)
 	FT[it][iK] += FF * FF * exp(II * omega * tlattice[it]);
     }
     RAW_infile.close();