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-rw-r--r--program/include/rcube_imap.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/include/rcube_imap.inc b/program/include/rcube_imap.inc
index 859dd3183..24cd94a52 100644
--- a/program/include/rcube_imap.inc
+++ b/program/include/rcube_imap.inc
@@ -320,7 +320,7 @@ class rcube_imap
else
$headers_cached = TRUE;
- if (!is_array(a_msg_headers))
+ if (!is_array($a_msg_headers))
return array();
// sort headers by a specific col