diff --git a/qutebrowser/utils/log.py b/qutebrowser/utils/log.py
index 1fb41b7dd..cc44b1672 100644
--- a/qutebrowser/utils/log.py
+++ b/qutebrowser/utils/log.py
@@ -260,9 +260,11 @@ def qt_message_handler(msg_type, context, msg):
         # bug on some pages.
         # https://bugreports.qt-project.org/browse/QTBUG-30298
         "QNetworkReplyImplPrivate::error: Internal problem, this method must "
-        "only be called once."
+        "only be called once.",
         # Not much information about this, but it seems harmless
-        'QXcbWindow: Unhandled client message: "_GTK_LOAD_ICONTHEMES"')
+        'QXcbWindow: Unhandled client message: "_GTK_LOAD_ICONTHEMES"',
+        # Sometimes indicates missing text, but most of the time harmless
+        'load glyph failed err=\S+ face=\S+, glyph=\S+')
     if any(re.match(pattern, msg.strip()) for pattern in suppressed_msgs):
         level = logging.DEBUG
     else: