diff --git a/Helper/Table.php b/Helper/Table.php
index cf714873f..bbe502e36 100644
--- a/Helper/Table.php
+++ b/Helper/Table.php
@@ -411,7 +411,7 @@ public function render()
 
                 if ($isHeader && !$isHeaderSeparatorRendered) {
                     $this->renderRowSeparator(
-                        $isHeader ? self::SEPARATOR_TOP : self::SEPARATOR_TOP_BOTTOM,
+                        self::SEPARATOR_TOP,
                         $hasTitle ? $this->headerTitle : null,
                         $hasTitle ? $this->style->getHeaderTitleFormat() : null
                     );
@@ -421,7 +421,7 @@ public function render()
 
                 if ($isFirstRow) {
                     $this->renderRowSeparator(
-                        $isHeader ? self::SEPARATOR_TOP : self::SEPARATOR_TOP_BOTTOM,
+                        $horizontal ? self::SEPARATOR_TOP : self::SEPARATOR_TOP_BOTTOM,
                         $hasTitle ? $this->headerTitle : null,
                         $hasTitle ? $this->style->getHeaderTitleFormat() : null
                     );
diff --git a/Tests/Helper/TableTest.php b/Tests/Helper/TableTest.php
index 4007a7f55..350482a86 100644
--- a/Tests/Helper/TableTest.php
+++ b/Tests/Helper/TableTest.php
@@ -1998,4 +1998,63 @@ public function testWithHyperlinkAndMaxWidth()
 
         $this->assertSame($expected, $this->getOutputContent($output));
     }
+
+    public function testGithubIssue52101HorizontalTrue()
+    {
+        $tableStyle = (new TableStyle())
+            ->setHorizontalBorderChars('─')
+            ->setVerticalBorderChars('│')
+            ->setCrossingChars('┼', '┌', '┬', '┐', '┤', '┘', '┴', '└', '├')
+        ;
+
+        $table = (new Table($output = $this->getOutputStream()))
+            ->setStyle($tableStyle)
+            ->setHeaderTitle('Title')
+            ->setHeaders(['Hello', 'World'])
+            ->setRows([[1, 2], [3, 4]])
+            ->setHorizontal(true)
+        ;
+        $table->render();
+
+        $this->assertSame(<<<TABLE
+┌──── Title ┬───┐
+│ Hello │ 1 │ 3 │
+│ World │ 2 │ 4 │
+└───────┴───┴───┘
+
+TABLE
+            ,
+            $this->getOutputContent($output)
+        );
+    }
+
+    public function testGithubIssue52101HorizontalFalse()
+    {
+        $tableStyle = (new TableStyle())
+            ->setHorizontalBorderChars('─')
+            ->setVerticalBorderChars('│')
+            ->setCrossingChars('┼', '┌', '┬', '┐', '┤', '┘', '┴', '└', '├')
+        ;
+
+        $table = (new Table($output = $this->getOutputStream()))
+            ->setStyle($tableStyle)
+            ->setHeaderTitle('Title')
+            ->setHeaders(['Hello', 'World'])
+            ->setRows([[1, 2], [3, 4]])
+            ->setHorizontal(false)
+        ;
+        $table->render();
+
+        $this->assertSame(<<<TABLE
+┌──── Title ────┐
+│ Hello │ World │
+├───────┼───────┤
+│ 1     │ 2     │
+│ 3     │ 4     │
+└───────┴───────┘
+
+TABLE,
+            $this->getOutputContent($output)
+        );
+    }
 }