diff --git a/src/analysis/function_attributes.d b/src/analysis/function_attributes.d
index c3b7786..8087310 100644
--- a/src/analysis/function_attributes.d
+++ b/src/analysis/function_attributes.d
@@ -63,19 +63,21 @@ class FunctionAttributeCheck : BaseAnalyzer
 			bool foundProperty = false;
 			foreach (attribute; dec.attributes)
 				foundConst = foundConst || attribute.attribute.type == tok!"const"
-				|| attribute.attribute.type == tok!"immutable";
+				|| attribute.attribute.type == tok!"immutable"
+				|| attribute.attribute.type == tok!"inout";
 			foreach (attribute; dec.memberFunctionAttributes)
 			{
 				foundProperty = foundProperty || (attribute.atAttribute !is null
 					&& attribute.atAttribute.identifier.text == "property");
 				foundConst = foundConst || attribute.tokenType == tok!"const"
-					|| attribute.tokenType == tok!"immutable";
+					|| attribute.tokenType == tok!"immutable"
+					|| attribute.tokenType == tok!"inout";
 			}
 			if (foundProperty && !foundConst)
 			{
 				addErrorMessage(dec.name.line, dec.name.column, KEY,
 					"Zero-parameter '@property' function should be"
-					~ " marked 'const'.");
+					~ " marked 'const', 'inout', or 'immutable'.");
 			}
 		}
 		dec.accept(this);