diff --git a/module/VuFind/src/VuFind/Autocomplete/Solr.php b/module/VuFind/src/VuFind/Autocomplete/Solr.php
index 577047797f8adcfc7cb3de60df04b392e3b46a12..e525c974f377f5ad2e9eb32015aa7a3aebd52685 100644
--- a/module/VuFind/src/VuFind/Autocomplete/Solr.php
+++ b/module/VuFind/src/VuFind/Autocomplete/Solr.php
@@ -172,7 +172,7 @@ class Solr implements AutocompleteInterface
     protected function mungeQuery($query)
     {
         // Modify the query so it makes a nice, truncated autocomplete query:
-        $forbidden = [':', '(', ')', '*', '+', '"'];
+        $forbidden = [':', '(', ')', '*', '+', '"', "'"];
         $query = str_replace($forbidden, " ", $query);
         if (substr($query, -1) != " ") {
             $query .= "*";