diff --git a/inc/3rdparty/makefulltextfeed.php b/inc/3rdparty/makefulltextfeed.php
index 62c050e..a081f88 100755
--- a/inc/3rdparty/makefulltextfeed.php
+++ b/inc/3rdparty/makefulltextfeed.php
@@ -671,7 +671,11 @@ foreach ($items as $key => $item) {
 			$html .= $item->get_description();
 		} else {
 			$readability->clean($content_block, 'select');
-			if ($options->rewrite_relative_urls) makeAbsolute($effective_url, $content_block);
+			// get base URL
+			$base_url = get_base_url($readability->dom);
+			if (!$base_url) $base_url = $effective_url;
+			// rewrite URLs
+			if ($options->rewrite_relative_urls) makeAbsolute($base_url, $content_block);
 			// footnotes
 			if (($links == 'footnotes') && (strpos($effective_url, 'wikipedia.org') === false)) {
 				$readability->addFootnotes($content_block);
diff --git a/inc/3rdparty/makefulltextfeedHelpers.php b/inc/3rdparty/makefulltextfeedHelpers.php
index 4e98537..ac872ab 100755
--- a/inc/3rdparty/makefulltextfeedHelpers.php
+++ b/inc/3rdparty/makefulltextfeedHelpers.php
@@ -377,3 +377,13 @@ function debug($msg) {
 		flush();
 	}
 }
+
+function get_base_url($dom) {
+	$xpath = new DOMXPath($dom);
+	$base_url = @$xpath->evaluate('string(//head/base/@href)', $dom);
+	if ($base_url !== '') {
+		return $base_url;
+	} else {
+		return false;
+	}
+}