diff --git a/markdown-include.js b/markdown-include.js
index 304cc63..db9a6e8 100644
--- a/markdown-include.js
+++ b/markdown-include.js
@@ -12,7 +12,7 @@ var q = require('q');
 
 this.ignoreTag = ' !ignore';
 this.headingTag = ' !heading';
-this.includePattern = /^#include\s"(.+\/|\/|\w|-|\/)+\.(md|markdown)"/gm;
+this.includePattern = /^#include\s"(.+\/|\/|\w|-|\/|\.)+\.(md|markdown)"/gm;
 this.ignorePattern = new RegExp('^#include\\s"(.+\\/|\\/|\\w|-|\\/)+\.(md|markdown)"' + this.ignoreTag, 'gm');
 this.headingPattern = new RegExp('^#+\\s.+' + this.headingTag, 'gm');
 this.tableOfContents = '';
diff --git a/tests/data/docs/has_include_tags.md b/tests/data/docs/has_include_tags.md
index 3f26199..ba34bd4 100644
--- a/tests/data/docs/has_include_tags.md
+++ b/tests/data/docs/has_include_tags.md
@@ -1,2 +1,3 @@
 #include "tests/data/docs/1.md"
-#include "tests/data/docs/2.md"
\ No newline at end of file
+#include "tests/data/docs/2.md"
+#include "tests/data/docs/3.extradot.md"
\ No newline at end of file
diff --git a/tests/unit/findIncludeTags.js b/tests/unit/findIncludeTags.js
index df29983..f1d2090 100644
--- a/tests/unit/findIncludeTags.js
+++ b/tests/unit/findIncludeTags.js
@@ -8,7 +8,7 @@ define([
 		bdd.it('should return an array if include tags are found', function () {
 			var file = fs.readFileSync('tests/data/docs/has_include_tags.md').toString();
 			var findHeadingTags = markdownInclude.findIncludeTags(file);
-			assert.equal(findHeadingTags.length, 2, 'Heading tags length match');
+			assert.equal(findHeadingTags.length, 3, 'Heading tags length match');
 		});
 	});
 });
\ No newline at end of file