diff --git a/src/parser.rs b/src/parser.rs
index 14c0418..bb24d69 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -167,9 +167,9 @@ where
                 VariableChange::parser(&parser.variables).map(into_box),
                 "variable assignment",
             ),
-            expect(Loop::parser(parser).map(into_box), "expected a loop"),
-            expect(Tuplet::parser(parser).map(into_box), "expected a tuplet"),
-            expect(Slope::parser(parser).map(into_box), "expected a slope"),
+            expect(Loop::parser(parser).map(into_box), "in the loop"),
+            expect(Tuplet::parser(parser).map(into_box), "in the tuplet"),
+            expect(Slope::parser(parser).map(into_box), "in the slope"),
             expect(
                 Note::parser(parser.notes.as_ref()),
                 "expected a note as last appeal (input didn't match anything known)",