diff --git a/Koha/SuggestionEngine/Plugin/AuthorityFile.pm b/Koha/SuggestionEngine/Plugin/AuthorityFile.pm
index 1030344d25..fad0a58179 100644
--- a/Koha/SuggestionEngine/Plugin/AuthorityFile.pm
+++ b/Koha/SuggestionEngine/Plugin/AuthorityFile.pm
@@ -94,7 +94,7 @@ sub get_suggestions {
     foreach my $auth (@$searchresults) {
         push @results,
           {
-            'search'  => "an=$auth->{'authid'}",
+            'search'  => "an:$auth->{'authid'}",
             relevance => $count--,
             label     => $auth->{summary}->{authorized}->[0]->{heading}
           };
diff --git a/Koha/SuggestionEngine/Plugin/ExplodedTerms.pm b/Koha/SuggestionEngine/Plugin/ExplodedTerms.pm
index 009f2ec21c..c8a3339568 100644
--- a/Koha/SuggestionEngine/Plugin/ExplodedTerms.pm
+++ b/Koha/SuggestionEngine/Plugin/ExplodedTerms.pm
@@ -85,7 +85,7 @@ sub get_suggestions {
     my @results;
     foreach my $index (@indexes) {
         my $thissearch = $search;
-        $thissearch = "$index=$thissearch"
+        $thissearch = "$index:$thissearch"
           unless ( $thissearch =~ s/OP!/$index=/g );
         $template->{VARS}->{index} = $index;
         my $label = $template->output;