diff --git a/fp-includes/core/core.wp-pluggable-funcs.php b/fp-includes/core/core.wp-pluggable-funcs.php
index 1e1957e..815e020 100755
--- a/fp-includes/core/core.wp-pluggable-funcs.php
+++ b/fp-includes/core/core.wp-pluggable-funcs.php
@@ -46,7 +46,8 @@ if (!function_exists('get_nextpage_link')) :
 
 		$a = _get_nextprev_link('NextPage');
 
-		if ($q->single) {
+		// show next entry link only if there actually is a next entry - and only if one single entry is displayed
+		if (isset($a) && $q->single) {
 			$a [0] .= ' » ';
 		}
 
@@ -62,7 +63,8 @@ if (!function_exists('get_prevpage_link')) :
 
 		$a = _get_nextprev_link('PrevPage');
 
-		if ($q->single) {
+		// show previous entry link only if there actually is a previous entry - and only if one single entry is displayed
+		if (isset($a) && $q->single) {
 			$a [0] = ' « ' . $a [0];
 		}