diff --git a/lam/lib/pdf.inc b/lam/lib/pdf.inc
index e88ac77e..581db76c 100644
--- a/lam/lib/pdf.inc
+++ b/lam/lib/pdf.inc
@@ -95,7 +95,7 @@ function createModulePDF($accounts,$pdf_structure="default") {
 			// We have a new section to start
 			if($entry['tag'] == "SECTION" && $entry['type'] == "open") {
 				$name = $entry['attributes']['NAME'];
-				if(preg_match("/^\_[a-zA-Z\_]+/",$name)) {
+				if(preg_match("/^_[a-zA-Z_]+/",$name)) {
 					$section_headline = getSectionHeadline($entries[substr($name,1)][0]);
 				}
 				else {
diff --git a/lam/templates/pdfedit/pdfpage.php b/lam/templates/pdfedit/pdfpage.php
index 4102a398..1f8b2474 100644
--- a/lam/templates/pdfedit/pdfpage.php
+++ b/lam/templates/pdfedit/pdfpage.php
@@ -486,7 +486,7 @@ foreach($_SESSION['currentPDFStructure'] as $key => $entry) {
 									<td colspan="2">
 		<?php
 		// Section headline is a value entry
-		if(preg_match("/^\_[a-zA-Z\_]+/",$name)) {
+		if(preg_match("/^_[a-zA-Z_]+/",$name)) {
 			?>
 										<select name="section_<?php echo $key;?>">
 											<!-- <?php echo $section_items;?> -->
@@ -517,7 +517,7 @@ foreach($_SESSION['currentPDFStructure'] as $key => $entry) {
 	}
 	// We have a section to end
 	elseif($entry['tag'] == "SECTION" && $entry['type'] == "close") {
-		if(preg_match("/^\_[a-zA-Z\_]+/",$name)) {
+		if(preg_match("/^_[a-zA-Z_]+/",$name)) {
 			$section_headline = substr($name,1);
 		}
 		else {