diff --git a/autotests/html/brightscript.brs.html b/autotests/html/brightscript.brs.html
--- a/autotests/html/brightscript.brs.html
+++ b/autotests/html/brightscript.brs.html
@@ -102,5 +102,11 @@
 
 <span style="color:#0057ae;">b</span>.<span style="color:#644a9b;">foo</span>(<span style="color:#bf0303;">&quot;string&quot;</span>,<span style="color:#b08000;">1</span>,{<span style="color:#0057ae;">a</span>:<span style="color:#0057ae;">b</span>},<span style="color:#b08000;">1.5</span>,[<span style="color:#b08000;">1</span>,<span style="color:#b08000;">2</span>,<span style="color:#b08000;">3</span>])
 <span style="color:#0057ae;">a</span> = <span style="color:#0057ae;">b</span>.<span style="color:#644a9b;">foo</span>(<span style="color:#bf0303;">&quot;string&quot;</span>,<span style="color:#b08000;">1</span>,{<span style="color:#0057ae;">a</span>:<span style="color:#0057ae;">b</span>},<span style="color:#b08000;">1.5</span>,[<span style="color:#b08000;">1</span>,<span style="color:#b08000;">2</span>,<span style="color:#b08000;">3</span>])
+
+<span style="color:#0057ae;">unnamed_function</span> = <span style="font-weight:bold;">function</span> ( <span style="color:#0057ae;">a</span> <span style="font-weight:bold;">as</span> <span style="color:#0057ae;">Integer</span> ) <span style="font-weight:bold;">as</span> <span style="color:#0057ae;">Float</span>
+<span style="font-weight:bold;">end function</span>
+
+<span style="color:#0057ae;">unnamed_sub</span> = <span style="font-weight:bold;">sub</span> ( <span style="color:#0057ae;">a</span> <span style="font-weight:bold;">as</span> <span style="color:#0057ae;">Integer</span> ) <span style="font-weight:bold;">as</span> <span style="color:#0057ae;">Void</span>
+<span style="font-weight:bold;">end sub</span>
 <span style="font-weight:bold;">endFunction</span>
 </pre></body></html>
diff --git a/autotests/input/brightscript.brs b/autotests/input/brightscript.brs
--- a/autotests/input/brightscript.brs
+++ b/autotests/input/brightscript.brs
@@ -96,4 +96,10 @@
 
 b.foo("string",1,{a:b},1.5,[1,2,3])
 a = b.foo("string",1,{a:b},1.5,[1,2,3])
+
+unnamed_function = function ( a as Integer ) as Float
+end function
+
+unnamed_sub = sub ( a as Integer ) as Void
+end sub
 endFunction
diff --git a/autotests/reference/brightscript.brs.ref b/autotests/reference/brightscript.brs.ref
--- a/autotests/reference/brightscript.brs.ref
+++ b/autotests/reference/brightscript.brs.ref
@@ -96,4 +96,10 @@
 <g></g><br/>
 <var>b</var><operator>.</operator><func>foo</func><scope>(</scope><string>"string"</string><coma>,</coma><dec>1</dec><coma>,</coma><operator>{</operator><var>a</var><operator>:</operator><var>b</var><operator>}</operator><coma>,</coma><float>1.5</float><coma>,</coma><operator>[</operator><dec>1</dec><coma>,</coma><dec>2</dec><coma>,</coma><dec>3</dec><operator>]</operator><scope>)</scope><br/>
 <var>a</var><g> </g><assign>=</assign><g> </g><var>b</var><operator>.</operator><func>foo</func><scope>(</scope><string>"string"</string><coma>,</coma><dec>1</dec><coma>,</coma><operator>{</operator><var>a</var><operator>:</operator><var>b</var><operator>}</operator><coma>,</coma><float>1.5</float><coma>,</coma><operator>[</operator><dec>1</dec><coma>,</coma><dec>2</dec><coma>,</coma><dec>3</dec><operator>]</operator><scope>)</scope><br/>
+<g></g><br/>
+<var>unnamed_function</var><g> </g><assign>=</assign><g> </g><keyword>function</keyword><g> </g><scope>(</scope><g> </g><var>a</var><g> </g><keyword>as</keyword><g> </g><type>Integer</type><g> </g><scope>)</scope><g> </g><keyword>as</keyword><g> </g><type>Float</type><br/>
+<keyword>end function</keyword><br/>
+<g></g><br/>
+<var>unnamed_sub</var><g> </g><assign>=</assign><g> </g><keyword>sub</keyword><g> </g><scope>(</scope><g> </g><var>a</var><g> </g><keyword>as</keyword><g> </g><type>Integer</type><g> </g><scope>)</scope><g> </g><keyword>as</keyword><g> </g><type>Void</type><br/>
+<keyword>end sub</keyword><br/>
 <keyword>endFunction</keyword><br/>
diff --git a/data/syntax/brightscript.xml b/data/syntax/brightscript.xml
--- a/data/syntax/brightscript.xml
+++ b/data/syntax/brightscript.xml
@@ -4,7 +4,7 @@
 	name="BrightScript"
 	section="Scripts"
 	extensions="*.brs"
-	version="0"
+	version="1"
 	kateversion="5.0"
 	author="Daniel Levin (dendy.ua@gmail.com)"
 	license="MIT">
@@ -310,6 +310,7 @@
 <context name="sub_name" attribute="g" lineEndContext="#stay" fallthrough="true" fallthroughContext="#pop!sub_code">
 	<DetectSpaces/>
 	<DetectIdentifier attribute="func" context="#pop!sub_open_brace"/>
+	<DetectChar char="(" context="#pop!sub_open_brace" lookAhead="true"/>
 </context>
 
 <context name="sub_open_brace" attribute="g" lineEndContext="#stay" fallthrough="true" fallthroughContext="#pop!sub_code">