diff --git a/src/Psalm/Checker/Statements/Block/SwitchChecker.php b/src/Psalm/Checker/Statements/Block/SwitchChecker.php
index bf634e192..e21a6f44c 100644
--- a/src/Psalm/Checker/Statements/Block/SwitchChecker.php
+++ b/src/Psalm/Checker/Statements/Block/SwitchChecker.php
@@ -556,14 +556,12 @@ class SwitchChecker
                 if ($redefined_vars !== null) {
                     foreach ($redefined_vars as $var_id => $type) {
                         if (isset($case_context->switch_scope->break_vars[$var_id])) {
-                            if (!isset($case_context->switch_scope->break_vars[$var_id])) {
-                                unset($redefined_vars[$var_id]);
-                            } else {
-                                $redefined_vars[$var_id] = Type::combineUnionTypes(
-                                    $case_context->switch_scope->break_vars[$var_id],
-                                    $type
-                                );
-                            }
+                            $redefined_vars[$var_id] = Type::combineUnionTypes(
+                                $case_context->switch_scope->break_vars[$var_id],
+                                $type
+                            );
+                        } else {
+                            unset($redefined_vars[$var_id]);
                         }
                     }
                 }
diff --git a/src/Psalm/Type/Reconciler.php b/src/Psalm/Type/Reconciler.php
index 5cd72ab4e..f77dc078b 100644
--- a/src/Psalm/Type/Reconciler.php
+++ b/src/Psalm/Type/Reconciler.php
@@ -1454,7 +1454,7 @@ class Reconciler
                     $did_remove_type = false;
 
                     foreach ($existing_var_atomic_types as $atomic_key => $_) {
-                        if ($key !== $new_var_type) {
+                        if ($atomic_key !== $new_var_type) {
                             $existing_var_type->removeType($atomic_key);
                             $did_remove_type = true;
                         } else {
@@ -1497,7 +1497,7 @@ class Reconciler
                     $did_remove_type = false;
 
                     foreach ($existing_var_atomic_types as $atomic_key => $_) {
-                        if ($key !== $new_var_type) {
+                        if ($atomic_key !== $new_var_type) {
                             $existing_var_type->removeType($atomic_key);
                             $did_remove_type = true;
                         } else {
@@ -1542,7 +1542,7 @@ class Reconciler
                     $did_remove_type = false;
 
                     foreach ($existing_var_atomic_types as $atomic_key => $_) {
-                        if ($key !== $new_var_type) {
+                        if ($atomic_key !== $new_var_type) {
                             $existing_var_type->removeType($atomic_key);
                             $did_remove_type = true;
                         } else {