diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index bf886293ef..8cd50f8b15 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -5287,7 +5287,7 @@ fn (mut c Checker) fn_decl(mut node ast.FnDecl) {
 		}
 		if sym.name.len == 1 {
 			// One letter types are reserved for generics.
-			c.error('unknown type `$sym.name`', node.pos)
+			c.error('unknown type `$sym.name`', node.receiver_pos)
 			return
 		}
 		// if sym.has_method(node.name) {
diff --git a/vlib/v/checker/tests/receiver_unknown_type_single_letter.out b/vlib/v/checker/tests/receiver_unknown_type_single_letter.out
index bd78937087..40e356eff7 100644
--- a/vlib/v/checker/tests/receiver_unknown_type_single_letter.out
+++ b/vlib/v/checker/tests/receiver_unknown_type_single_letter.out
@@ -1,3 +1,4 @@
 vlib/v/checker/tests/receiver_unknown_type_single_letter.vv:1:5: error: unknown type `A`
     1 | fn (p A) foo() {}
       |     ~~~
+    2 |