Merge remote-tracking branch 'origin/new/bug_8597'

[koha.git] / Koha / Cache.pm

diff --git a/Koha/Cache.pm b/Koha/Cache.pm
index 8850c06..740a133 100644 (file)
--- a/Koha/Cache.pm
+++ b/Koha/Cache.pm
@@ -84,7 +84,7 @@ sub new {
 }
 
 sub is_cache_active {
-    return $ENV{CACHING_SYSTEM} ? '1' : undef;
+    return $ENV{CACHING_SYSTEM} ? '1' : '';
 }
 
 sub set_in_cache {