diff --git a/releasenotes.md b/releasenotes.md
index 79b7263e0..1a774a127 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -12,6 +12,7 @@
 - Add `math::@ceil()` compile time ceil function. #2134
 - Improve error message when using keywords as functions/macros/variables #2133.
 - Deprecate `MyEnum.elements`.
+- Deprecate `SomeFn.params`.
 
 ### Fixes
 - Assert triggered when casting from `int[2]` to `uint[2]` #2115
diff --git a/src/compiler/sema_expr.c b/src/compiler/sema_expr.c
index 4b00c980e..2874cfa1b 100644
--- a/src/compiler/sema_expr.c
+++ b/src/compiler/sema_expr.c
@@ -5155,6 +5155,7 @@ static bool sema_expr_rewrite_to_type_property(SemaContext *context, Expr *expr,
 		case TYPE_PROPERTY_PARAMSOF:
 			return sema_create_const_paramsof(expr, flat);
 		case TYPE_PROPERTY_PARAMS:
+			SEMA_DEPRECATED(expr, "'params' is deprecated, use 'paramsof' instead.");
 			return sema_create_const_params(expr, flat);
 		case TYPE_PROPERTY_RETURNS:
 			expr_rewrite_const_typeid(expr, type_infoptr(flat->pointer->function.signature->rtype)->type);
diff --git a/test/test_suite/compile_time/ct_memberof.c3t b/test/test_suite/compile_time/ct_memberof.c3t
index 64c39437f..4790103fe 100644
--- a/test/test_suite/compile_time/ct_memberof.c3t
+++ b/test/test_suite/compile_time/ct_memberof.c3t
@@ -6,9 +6,9 @@ fn int hell() { return 1; }
 
 macro print_args($Type)
 {
-	var $params = $Type.params;
+	var $params = $Type.paramsof;
 	$foreach $param : $params:
-		io::printn($param.nameof);
+		io::printn($param.type.nameof);
 	$endforeach;
 }