Index: src/Boo.Lang.Compiler/Steps/EmitAssembly.cs
===================================================================
--- src/Boo.Lang.Compiler/Steps/EmitAssembly.cs	(revision 1895)
+++ src/Boo.Lang.Compiler/Steps/EmitAssembly.cs	(working copy)
@@ -3607,6 +3607,10 @@
 				{
 					SetParamArrayAttribute(paramBuilder);
 				}
+				foreach (Boo.Lang.Compiler.Ast.Attribute attribute in parameters[i].Attributes)
+				{
+					paramBuilder.SetCustomAttribute(GetCustomAttributeBuilder(attribute));
+				}
 			}
 		}
 		
Index: tests/testcases/integration/attributes-8.boo
===================================================================
--- tests/testcases/integration/attributes-8.boo	(revision 1895)
+++ tests/testcases/integration/attributes-8.boo	(working copy)
@@ -1,6 +1,8 @@
 """
 DemoAttribute constructor
 DemoAttribute
+DemoAttribute constructor
+DemoAttribute
 """
 import System
 
@@ -10,8 +12,13 @@
 		print "DemoAttribute constructor"
 
 class DemoClass:
-	def DemoMethod([Demo] demoArg):
+	def constructor([Demo] arg1):
 		pass
+	def DemoMethod([Demo] demoArg) as int [Demo]:
+		pass
 			
 print typeof(DemoClass).GetMethod("DemoMethod").GetParameters()[0].GetCustomAttributes(true)[0]
+print typeof(DemoClass).GetConstructor((object,)).GetParameters()[0].GetCustomAttributes(true)[0]
+//uncomment when DefineParameter(0...) bug is not around
+//print typeof(DemoClass).GetMethod("DemoMethod").ReturnTypeCustomAttributes.GetCustomAttributes(true)[0]