diff --git a/lib/parse.js b/lib/parse.js
index dc488150..f0d8c3cc 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -229,8 +229,10 @@ var normalizeParseOptions = function normalizeParseOptions(opts) {
         throw new TypeError('The duplicates option must be either combine, first, or last');
     }
 
+    var allowDots = typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots;
+
     return {
-        allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots,
+        allowDots: allowDots,
         allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,
         allowPrototypes: typeof opts.allowPrototypes === 'boolean' ? opts.allowPrototypes : defaults.allowPrototypes,
         allowSparse: typeof opts.allowSparse === 'boolean' ? opts.allowSparse : defaults.allowSparse,
diff --git a/lib/stringify.js b/lib/stringify.js
index 393ef69a..d71ffc0b 100644
--- a/lib/stringify.js
+++ b/lib/stringify.js
@@ -238,9 +238,11 @@ var normalizeStringifyOptions = function normalizeStringifyOptions(opts) {
         throw new TypeError('`commaRoundTrip` must be a boolean, or absent');
     }
 
+    var allowDots = typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots;
+
     return {
         addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix,
-        allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots,
+        allowDots: allowDots,
         allowEmptyArrays: typeof opts.allowEmptyArrays === 'boolean' ? !!opts.allowEmptyArrays : defaults.allowEmptyArrays,
         arrayFormat: arrayFormat,
         charset: charset,