diff --git a/lib/blocks.php b/lib/blocks.php
index d73d90cc12457c..8088cb432d77b4 100644
--- a/lib/blocks.php
+++ b/lib/blocks.php
@@ -90,9 +90,16 @@ function do_blocks( $content ) {
 		$block_name = isset( $block['blockName'] ) ? $block['blockName'] : null;
 		$attributes = is_array( $block['attrs'] ) ? $block['attrs'] : array();
 		if ( $block_name && isset( $wp_registered_blocks[ $block_name ] ) ) {
+
+			$content = null;
+			if ( isset( $block['rawContent'] ) ) {
+				$content = $block['rawContent'];
+			}
+
 			$content_after_blocks .= call_user_func(
 				$wp_registered_blocks[ $block_name ]['render'],
-				$attributes
+				$attributes,
+				$content
 			);
 		} else {
 			$content_after_blocks .= $block['rawContent'];
diff --git a/phpunit/class-dynamic-blocks-render-test.php b/phpunit/class-dynamic-blocks-render-test.php
index 0ad582c21aa14c..62730c44a93ea6 100644
--- a/phpunit/class-dynamic-blocks-render-test.php
+++ b/phpunit/class-dynamic-blocks-render-test.php
@@ -21,12 +21,13 @@ class Dynamic_Blocks_Render_Test extends WP_UnitTestCase {
 	 * Dummy block rendering function.
 	 *
 	 * @param  array $attributes Block attributes.
+	 * @param  array $content    Content.
 	 *
 	 * @return string             Block output.
 	 */
-	function render_dummy_block( $attributes ) {
+	function render_dummy_block( $attributes, $content ) {
 		$this->dummy_block_instance_number += 1;
-		return $this->dummy_block_instance_number . ':' . $attributes['value'];
+		return $this->dummy_block_instance_number . ':' . $attributes['value'] . ":$content";
 	}
 
 	/**
@@ -64,11 +65,11 @@ function test_dynamic_block_rendering() {
 		$updated_post_content = do_blocks( $post_content );
 		$this->assertEquals( $updated_post_content,
 			'before' .
-			'1:b1' .
-			'2:b1' .
+			'1:b1:' .
+			'2:b1:' .
 			'between' .
-			'3:b2' .
-			'4:b2' .
+			'3:b2:' .
+			'4:b2:' .
 			'after'
 		);
 	}
@@ -88,17 +89,17 @@ function test_dynamic_block_rendering_with_content() {
 		register_block_type( 'core/dummy', $settings );
 		$post_content =
 			'before' .
-			'<!-- wp:core/dummy {"value":"b1"} -->this\nshould\n\nbe\nignored<!-- /wp:core/dummy -->' .
+			"<!-- wp:core/dummy {\"value\":\"b1\"} -->this\ncontent\n\nshould\nbe\npassed<!-- /wp:core/dummy -->" .
 			'between' .
-			'<!-- wp:core/dummy {"value":"b2"} -->this should also be ignored<!-- /wp:core/dummy -->' .
+			'<!-- wp:core/dummy {"value":"b2"} -->content2<!-- /wp:core/dummy -->' .
 			'after';
 
 		$updated_post_content = do_blocks( $post_content );
 		$this->assertEquals( $updated_post_content,
 			'before' .
-			'1:b1' .
+			"1:b1:this\ncontent\n\nshould\nbe\npassed" .
 			'between' .
-			'2:b2' .
+			'2:b2:content2' .
 			'after'
 		);
 	}