diff --git a/src/apps/molresponse/response_functions.h b/src/apps/molresponse/response_functions.h
index c09039f3187..3b683cca9f8 100644
--- a/src/apps/molresponse/response_functions.h
+++ b/src/apps/molresponse/response_functions.h
@@ -321,7 +321,7 @@ namespace madness {
         // Mimicing standard madness calls with these 3
         void zero() {
             auto &world = x[0][0].world();
-            for (auto&i:active) { x[i] = zero_functions<double, 3>(world, num_orbitals, false); }
+            for (int i =0;i<num_states;i++ ) { x[i] = zero_functions<double, 3>(world, num_orbitals, false); }
         }
 
         void compress_rf() {