diff --git a/src/Forms/HTMLEditor/HTMLEditorField.php b/src/Forms/HTMLEditor/HTMLEditorField.php
index 2675875d6..3edd623f7 100644
--- a/src/Forms/HTMLEditor/HTMLEditorField.php
+++ b/src/Forms/HTMLEditor/HTMLEditorField.php
@@ -114,20 +114,10 @@ class HTMLEditorField extends TextareaField
 
     public function getAttributes()
     {
-        $config = $this->getEditorConfig();
-        // Fix CSS height based on rows
-        $rowHeight = $this->config()->get('fixed_row_height');
-        $attributes = [];
-        if ($rowHeight && ($config instanceof TinyMCEConfig)) {
-            $height = $this->getRows() * $rowHeight;
-            $attributes['style'] = sprintf('height: %dpx;', $height);
-            $config = clone $config;
-            $config->setOption('height', 'auto');
-        }
+        $config = $this->setEditorHeight($this->getEditorConfig());
 
         // Merge attributes
         return array_merge(
-            $attributes,
             parent::getAttributes(),
             $config->getAttributes()
         );
@@ -190,7 +180,7 @@ class HTMLEditorField extends TextareaField
     public function getSchemaStateDefaults()
     {
         $stateDefaults = parent::getSchemaStateDefaults();
-        $config = $this->getEditorConfig();
+        $config = $this->setEditorHeight($this->getEditorConfig());
         $stateDefaults['data'] = $config->getConfigSchemaData();
         return $stateDefaults;
     }
@@ -204,4 +194,23 @@ class HTMLEditorField extends TextareaField
     {
         return htmlentities($this->Value() ?? '', ENT_COMPAT, 'UTF-8', false);
     }
+
+    /**
+     * Set height of editor based on number of rows
+     */
+    private function setEditorHeight(HTMLEditorConfig $config): HTMLEditorConfig
+    {
+        $rowHeight = $this->config()->get('fixed_row_height');
+        if ($rowHeight && ($config instanceof TinyMCEConfig)) {
+            $rows = (int) $this->getRows();
+            $height = $rows * $rowHeight;
+            $config = clone $config;
+            if ($height) {
+                $config->setOption('height', 'auto');
+                $config->setOption('row_height', sprintf('%dpx', $height));
+            }
+        }
+
+        return $config;
+    }
 }
diff --git a/tests/php/Forms/HTMLEditor/HTMLEditorFieldTest.php b/tests/php/Forms/HTMLEditor/HTMLEditorFieldTest.php
index e09d5d7d4..bffd7c661 100644
--- a/tests/php/Forms/HTMLEditor/HTMLEditorFieldTest.php
+++ b/tests/php/Forms/HTMLEditor/HTMLEditorFieldTest.php
@@ -267,4 +267,43 @@ EOS
         $editor->saveInto($obj);
         $this->assertEquals($htmlValue, $obj->Content, 'Table is removed');
     }
+
+    public function testGetAttributes()
+    {
+        // Create an editor and set fixed_row_height to 0
+        $editor = HTMLEditorField::create('Content');
+        $editor->config()->set('fixed_row_height', 0);
+        // Get the attributes and config from the editor
+        $attributes = $editor->getAttributes();
+        $data_config = json_decode($attributes['data-config'], true);
+        // If fixed_row_height is 0 then row_height and height config are not set
+        $this->assertArrayNotHasKey('height', $data_config, 'Config height should not be set');
+        $this->assertArrayNotHasKey('row_height', $data_config, 'Config row_height should not be set');
+        // Set the fixed_row_height back to 20px
+        $editor->config()->set('fixed_row_height', 20);
+        // Set the rows to 0
+        $editor->setRows(0);
+        // Get the attributes and config from the editor
+        $attributes = $editor->getAttributes();
+        $data_config = json_decode($attributes['data-config'], true);
+        // If rows is 0 then row_height and height config are not set
+        $this->assertArrayNotHasKey('height', $data_config, 'Config height should not be set');
+        $this->assertArrayNotHasKey('row_height', $data_config, 'Config row_height should not be set');
+        // Set the rows to 5
+        $editor->setRows(5);
+        // Get the attributes and config from the editor
+        $attributes = $editor->getAttributes();
+        $data_config = json_decode($attributes['data-config']);
+        // Check the height is set to auto and the row height is set to 100px (5 rows * 20px)
+        $this->assertEquals("auto", $data_config->height, 'Config height is not set');
+        $this->assertEquals("100px", $data_config->row_height, 'Config row_height is not set');
+        // Change the row height to 60px and set the rows to 3
+        $editor->setRows(3);
+        // Get the attributes and config from the editor
+        $attributes = $editor->getSchemaStateDefaults();
+        $data_config = json_decode($attributes['data']['attributes']['data-config']);
+        // Check the height is set to auto and the row height is set to 60px (3 rows * 20px)
+        $this->assertEquals("auto", $data_config->height, 'Config height is not set');
+        $this->assertEquals("60px", $data_config->row_height, 'Config row_height is not set');
+    }
 }