diff --git a/src/backends/backend.js b/src/backends/backend.js
index cfc003ff..f91131e4 100644
--- a/src/backends/backend.js
+++ b/src/backends/backend.js
@@ -51,9 +51,9 @@ const slugFormatter = (template = "{{slug}}", entryData) => {
       case "day":
         return (`0${ date.getDate() }`).slice(-2);
       case "slug":
-        return sanitize(getIdentifier(entryData).trim().toLowerCase(), {replacement: "-"}).replace('.', '-');
+        return sanitize(getIdentifier(entryData).trim().toLowerCase(), {replacement: "-"}).replace(/[\.\s]/g, '-');
       default:
-        return sanitize(entryData.get(field, "").trim().toLowerCase(), {replacement: "-"}).replace('.', '-');
+        return sanitize(entryData.get(field, "").trim().toLowerCase(), {replacement: "-"}).replace(/[\.\s]/g, '-');
     }
   });
 };