diff --git a/lib/WebGUI/Cache/Database.pm b/lib/WebGUI/Cache/Database.pm
index 6f65187ce..bbdde4fab 100644
--- a/lib/WebGUI/Cache/Database.pm
+++ b/lib/WebGUI/Cache/Database.pm
@@ -66,7 +66,8 @@ A partial composite key to remove.
 
 sub deleteChunk {
 	my $self = shift;
-	$self->session->db->write("delete from cache where namespace=? and cachekey like ?",[$self->{_namespace}, $self->{_key}.'%']);
+	my $key = $self->parseKey(shift);
+	$self->session->db->write("delete from cache where namespace=? and cachekey like ?",[$self->{_namespace}, $key.'%']);
 }
 
 #-------------------------------------------------------------------