diff --git a/c_source/pruning/pruneVoids.cpp b/c_source/pruning/pruneVoids.cpp
index 8b3f646..a209323 100644
--- a/c_source/pruning/pruneVoids.cpp
+++ b/c_source/pruning/pruneVoids.cpp
@@ -736,8 +736,14 @@ int main(int argc, char **argv) {
                        sqrt(pow(voids[iVoid].macrocenter[0] - boxLen[0]/2.,2) + 
                             pow(voids[iVoid].macrocenter[1] - boxLen[1]/2.,2) + 
                             pow(voids[iVoid].macrocenter[2] - boxLen[2]/2.,2));
-      //voids[iVoid].redshiftInMpc = voids[iVoid].redshiftInMpc;
-
+      if (args.useComoving_flag) {
+        redshift = gsl_interp_eval(interp, dL, redshifts,
+                 voids[iVoid].redshiftInMpc, acc);
+        voids[iVoid].redshift = redshift;
+       } else {
+        redshift = voids[iVoid].redshiftInMpc;
+        voids[iVoid].redshift = voids[iVoid].redshiftInMpc/LIGHT_SPEED*100.;
+      }
     } else {
 
       voids[iVoid].redshiftInMpc = voids[iVoid].macrocenter[2];
@@ -878,7 +884,7 @@ int main(int argc, char **argv) {
   voids.resize(iGood);
   printf("  2nd filter: rejected %d too small\n", numTooSmall); 
 
-  // find top-level voids
+  // mark top-level voids
   numAreParents = 0;
   iGood = 0;
   for (iVoid = 0; iVoid < voids.size(); iVoid++) {