diff --git a/index.js b/index.js
index 564cb2ed..8eecb628 100644
--- a/index.js
+++ b/index.js
@@ -540,7 +540,7 @@ function parse (args, opts) {
       o[key] = increment(o[key])
     } else if (o[key] === undefined && checkAllAliases(key, flags.arrays)) {
       o[key] = Array.isArray(value) ? value : [value]
-    } else if (o[key] === undefined || checkAllAliases(key, flags.bools) || checkAllAliases(key, flags.counts)) {
+    } else if (o[key] === undefined || checkAllAliases(key, flags.bools) || checkAllAliases(keys.join('.'), flags.bools) || checkAllAliases(key, flags.counts)) {
       o[key] = value
     } else if (Array.isArray(o[key])) {
       o[key].push(value)
diff --git a/test/yargs-parser.js b/test/yargs-parser.js
index dac993c9..f4fbeb7b 100644
--- a/test/yargs-parser.js
+++ b/test/yargs-parser.js
@@ -198,6 +198,18 @@ describe('yargs-parser', function () {
     parse.should.have.property('_').and.deep.equal(['one', 'two', 'three'])
   })
 
+  it('should correctly parse dot-notation boolean flags', function () {
+    var parse = parser(['--nested', '--n.v', '--n.y', 'foo'], {
+      boolean: ['nested', 'n.v']
+    })
+
+    parse.should.have.property('nested', true).and.be.a('boolean')
+    parse.should.have.property('n').and.deep.equal({
+      v: true,
+      y: 'foo'
+    })
+  })
+
   it('should preserve newlines in option values', function () {
     var args = parser(['-s', 'X\nX'])
     args.should.have.property('_').with.length(0)