diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs
index 098e8de9420f..cc5a3e16c963 100644
--- a/compiler/rustc_borrowck/src/diagnostics/mod.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs
@@ -1089,7 +1089,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                     if is_option_or_result && maybe_reinitialized_locations_is_empty {
                         err.span_suggestion_verbose(
                             fn_call_span.shrink_to_lo(),
-                            "consider calling `.as_ref()` to borrow the type's contents",
+                            "consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents",
                             "as_ref().",
                             Applicability::MachineApplicable,
                         );
diff --git a/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr b/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr
index af26169c8068..17546f73836c 100644
--- a/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr
+++ b/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr
@@ -12,7 +12,7 @@ note: this function takes ownership of the receiver `self`, which moves `*cb`
    |
 LL |     pub const fn map<U, F>(self, f: F) -> Option<U>
    |                            ^^^^
-help: consider calling `.as_ref()` to borrow the type's contents
+help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents
    |
 LL |     cb.as_ref().map(|cb| cb());
    |        +++++++++
diff --git a/src/test/ui/suggestions/as-ref-2.stderr b/src/test/ui/suggestions/as-ref-2.stderr
index 3c9d0f72abe0..08b9fb1abd79 100644
--- a/src/test/ui/suggestions/as-ref-2.stderr
+++ b/src/test/ui/suggestions/as-ref-2.stderr
@@ -13,7 +13,7 @@ note: this function takes ownership of the receiver `self`, which moves `foo`
    |
 LL |     pub const fn map<U, F>(self, f: F) -> Option<U>
    |                            ^^^^
-help: consider calling `.as_ref()` to borrow the type's contents
+help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents
    |
 LL |     let _x: Option<Struct> = foo.as_ref().map(|s| bar(&s));
    |                                  +++++++++
diff --git a/src/test/ui/suggestions/option-content-move.stderr b/src/test/ui/suggestions/option-content-move.stderr
index fccfbe1d744c..d008971e4384 100644
--- a/src/test/ui/suggestions/option-content-move.stderr
+++ b/src/test/ui/suggestions/option-content-move.stderr
@@ -11,7 +11,7 @@ note: this function takes ownership of the receiver `self`, which moves `selecti
    |
 LL |     pub const fn unwrap(self) -> T {
    |                         ^^^^
-help: consider calling `.as_ref()` to borrow the type's contents
+help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents
    |
 LL |                 if selection.1.as_ref().unwrap().contains(selection.0) {
    |                                +++++++++
@@ -29,7 +29,7 @@ note: this function takes ownership of the receiver `self`, which moves `selecti
    |
 LL |     pub fn unwrap(self) -> T
    |                   ^^^^
-help: consider calling `.as_ref()` to borrow the type's contents
+help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents
    |
 LL |                 if selection.1.as_ref().unwrap().contains(selection.0) {
    |                                +++++++++