diff --git a/debian/postinst b/debian/postinst
index 44681d4..fbf0446 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -6,7 +6,9 @@ legacy_incs_policy_tpl="/usr/local/share/bkctld/inc.tpl"
 new_incs_policy_tpl="/usr/local/share/bkctld/incs_policy.tpl"
 
 if [ -e "${legacy_incs_policy_tpl}" ]; then
-    mv -f "${new_incs_policy_tpl}" "${new_incs_policy_tpl}.dpkg-new"
+    if [ -e "${new_incs_policy_tpl}" ]; then
+        mv -f "${new_incs_policy_tpl}" "${new_incs_policy_tpl}.dpkg-new"
+    fi
     mv -f "${legacy_incs_policy_tpl}" "${new_incs_policy_tpl}"
 fi