diff --git a/lib/compress.js b/lib/compress.js
index 8df9f4b2..1fd72d6d 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -320,7 +320,7 @@ merge(Compressor.prototype, {
                         d.fixed = false;
                     } else {
                         var value = node.fixed_value();
-                        if (unused) {
+                        if (unused && !compressor.exposed(d)) {
                             d.single_use = value
                                 && d.references.length == 1
                                 && loop_ids[d.id] === in_loop
diff --git a/test/compress/reduce_vars.js b/test/compress/reduce_vars.js
index d78f1174..d84d9a4d 100644
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -3111,3 +3111,88 @@ const_expr_2: {
     }
     expect_stdout: "2 2"
 }
+
+issue_2406_1: {
+    options = {
+        reduce_vars: true,
+        toplevel: false,
+        unused: true,
+    }
+    input: {
+        const c = {
+            fn: function() {
+                return this;
+            }
+        };
+        let l = {
+            fn: function() {
+                return this;
+            }
+        };
+        var v = {
+            fn: function() {
+                return this;
+            }
+        };
+        console.log(c.fn(), l.fn(), v.fn());
+    }
+    expect: {
+        const c = {
+            fn: function() {
+                return this;
+            }
+        };
+        let l = {
+            fn: function() {
+                return this;
+            }
+        };
+        var v = {
+            fn: function() {
+                return this;
+            }
+        };
+        console.log(c.fn(), l.fn(), v.fn());
+    }
+}
+
+issue_2406_2: {
+    options = {
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        const c = {
+            fn: function() {
+                return this;
+            }
+        };
+        let l = {
+            fn: function() {
+                return this;
+            }
+        };
+        var v = {
+            fn: function() {
+                return this;
+            }
+        };
+        console.log(c.fn(), l.fn(), v.fn());
+    }
+    expect: {
+        console.log({
+            fn: function() {
+                return this;
+            }
+        }.fn(), {
+            fn: function() {
+                return this;
+            }
+        }.fn(), {
+            fn: function() {
+                return this;
+            }
+        }.fn());
+    }
+}