diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs
index d14ff2c3b7e2..c5b014293f98 100644
--- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs
+++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs
@@ -4069,15 +4069,25 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
                 ))
                 && expr.span.hi() != rcvr.span.hi()
             {
-                err.span_suggestion_verbose(
-                    expr.span.with_lo(rcvr.span.hi()),
-                    format!(
-                        "consider removing this method call, as the receiver has type `{ty}` and \
-                         `{pred}` trivially holds",
-                    ),
-                    "",
-                    Applicability::MaybeIncorrect,
-                );
+                match tcx.hir_node(call_hir_id) {
+                    // Do not suggest removing a method call if the argument is the receiver of the parent call:
+                    // `x.a().b()`, suggesting removing `.a()` would change the type and could make `.b()` unavailable.
+                    Node::Expr(hir::Expr {
+                        kind: hir::ExprKind::MethodCall(_, call_receiver, _, _),
+                        ..
+                    }) if call_receiver.hir_id == arg_hir_id => {}
+                    _ => {
+                        err.span_suggestion_verbose(
+                            expr.span.with_lo(rcvr.span.hi()),
+                            format!(
+                                "consider removing this method call, as the receiver has type `{ty}` and \
+                                `{pred}` trivially holds",
+                            ),
+                            "",
+                            Applicability::MaybeIncorrect,
+                        );
+                    }
+                }
             }
             if let hir::Expr { kind: hir::ExprKind::Block(block, _), .. } = expr {
                 let inner_expr = expr.peel_blocks();
diff --git a/tests/ui/trait-bounds/argument-with-unnecessary-method-call.rs b/tests/ui/trait-bounds/argument-with-unnecessary-method-call.rs
index d8fd1d44a985..37fa01692053 100644
--- a/tests/ui/trait-bounds/argument-with-unnecessary-method-call.rs
+++ b/tests/ui/trait-bounds/argument-with-unnecessary-method-call.rs
@@ -9,3 +9,11 @@ fn main() {
     //~| HELP try using a fully qualified path to specify the expected types
     //~| HELP consider removing this method call, as the receiver has type `Bar` and `Bar: From<Bar>` trivially holds
 }
+
+// regression test for https://github.com/rust-lang/rust/issues/149487.
+fn quux() {
+    let mut tx_heights: std::collections::BTreeMap<(), Option<()>> = <_>::default();
+    tx_heights.get(&()).unwrap_or_default();
+    //~^ ERROR the trait bound `&Option<()>: Default` is not satisfied
+    //~| HELP: the trait `Default` is implemented for `Option<T>`
+}
diff --git a/tests/ui/trait-bounds/argument-with-unnecessary-method-call.stderr b/tests/ui/trait-bounds/argument-with-unnecessary-method-call.stderr
index 7d795581ea9d..f0c993125279 100644
--- a/tests/ui/trait-bounds/argument-with-unnecessary-method-call.stderr
+++ b/tests/ui/trait-bounds/argument-with-unnecessary-method-call.stderr
@@ -23,6 +23,18 @@ LL -     qux(Bar.into());
 LL +     qux(Bar);
    |
 
-error: aborting due to 1 previous error
+error[E0277]: the trait bound `&Option<()>: Default` is not satisfied
+  --> $DIR/argument-with-unnecessary-method-call.rs:16:25
+   |
+LL |     tx_heights.get(&()).unwrap_or_default();
+   |                         ^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `&Option<()>`
+   |
+help: the trait `Default` is implemented for `Option<T>`
+  --> $SRC_DIR/core/src/option.rs:LL:COL
+note: required by a bound in `Option::<T>::unwrap_or_default`
+  --> $SRC_DIR/core/src/option.rs:LL:COL
 
-For more information about this error, try `rustc --explain E0283`.
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0277, E0283.
+For more information about an error, try `rustc --explain E0277`.