diff --git a/jilo b/jilo
index a55e11a..5496504 100755
--- a/jilo
+++ b/jilo
@@ -207,31 +207,26 @@ jitsi_log_parse() {
                     fi
 
                 # locate participant pair selection event
-                elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=${conferenceId}\ .*epId=([a-zA-Z0-9-]+)\ stats_id=([a-zA-Z0-9-]+)\ .*Selected\ pair\ for\ stream\ .*([0-9.]+):10000/udp/srflx\ \-\>\ ([0-9.]+):[0-9]+/udp/prflx ]]; then
+                elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=${conferenceId}\ .*epId=${participant_endpoint_id}\ stats_id=${participant_stats_id}\ .*Selected\ pair\ for\ stream\ .*([0-9.]+):10000/udp/srflx\ \-\>\ ([0-9.]+):[0-9]+/udp/prflx ]]; then
                     participant_join_time="${BASH_REMATCH[1]}"
                     event_type='pair selected'
-                    participant_endpoint_id="${BASH_REMATCH[2]}"
-                    participant_stats_id="${BASH_REMATCH[3]}"
-                    participant_IP="${BASH_REMATCH[5]}"
+                    participant_IP="${BASH_REMATCH[3]}"
                     if [[ -n "$conferenceId" ]]; then
                         db_insert=$(printf "$db_insert_participant_template" "$conferenceId" "$participant_join_time" "$event_type" "$participant_endpoint_id" "$participant_stats_id" "$participant_IP")
                         db_query "$db_insert"
                     fi
 
                 # locate participant leaving event
-                elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=${conferenceId}\ .*epId=([a-zA-Z0-9-]+)\ stats_id=([a-zA-Z0-9-]+)\]\ Endpoint\.expire.*:\ Expired\. ]]; then
+                elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=${conferenceId}\ .*epId=${participant_endpoint_id}\ stats_id=${participant_stats_id}\]\ Endpoint\.expire.*:\ Expired\. ]]; then
                     participant_join_time="${BASH_REMATCH[1]}"
                     event_type='participant leaving'
-                    participant_endpoint_id="${BASH_REMATCH[2]}"
-                    participant_stats_id="${BASH_REMATCH[3]}"
-                    participant_IP="${BASH_REMATCH[5]}"
                     if [[ -n "$conferenceId" ]]; then
                         db_insert=$(printf "$db_insert_participant_template" "$conferenceId" "$participant_join_time" "$event_type" "$participant_endpoint_id" "$participant_stats_id" "$participant_IP")
                         db_query "$db_insert"
+                        # the participant left, forget about him
+                        unset $participant_join_time $event_type $participant_endpoint_id $participant_stats_id $participant_IP
                     fi
 
-
-
                 # locate the corresponding conference ending event
                 elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=([a-zA-Z0-9]+)\ .*conf_name=([^ ]+)@.*\]\ Conference\.expire ]]; then
                     end_time="${BASH_REMATCH[1]}"
@@ -242,7 +237,8 @@ jitsi_log_parse() {
                     if [[ -n "$start_time" ]]; then
                         db_insert=$(printf "$db_insert_conference_template" "$jitsi_component" "$conferenceName" "$conferenceId" "$start_time" "$end_time")
                         db_query "$db_insert"
-                        unset "start_times[$conferenceId]"
+                        # the conference ended, forget about it
+                        unset "start_times[$conferenceId]" $statr_time $end_time $conferenceId $conferenceName
                     fi
                 fi
                 ;;