diff --git a/matlab/perfect-foresight-models/sim1_purely_backward.m b/matlab/perfect-foresight-models/sim1_purely_backward.m
index 568ebe7092467fa438a3ecc2fa98c14bf744eafe..ca0dcd011cb04debca708007a8ca1d27e197d130 100644
--- a/matlab/perfect-foresight-models/sim1_purely_backward.m
+++ b/matlab/perfect-foresight-models/sim1_purely_backward.m
@@ -50,7 +50,7 @@ for it = M.maximum_lag + (1:options.periods)
     end
     if check
         info.status = false;
-        dprintf('sim1_purely_backward: Nonlinear solver routine failed with errorcode=%i. in period %i', errorcode, it)
+        dprintf('sim1_purely_backward: Nonlinear solver routine failed with errorcode=%i in period %i', errorcode, it)
         break
     end
     endogenousvariables(:,it) = tmp;