diff --git a/check_pg_streaming_replication b/check_pg_streaming_replication
index 0cd18a4..378fa5b 100755
--- a/check_pg_streaming_replication
+++ b/check_pg_streaming_replication
@@ -305,11 +305,11 @@ then
     debug "Last replayed LSN: $LAST_REPLAYED_LSN"
 
 
-    # Get master connection information from recovery.conf file
-    MASTER_CONN_INFOS=$( egrep '^ *primary_conninfo' $RECOVERY_CONF|sed "s/^ *primary_conninfo *= *\(.\+\) *$/\1/" )
+    # Get master connection information from primary_conninfo configuration parameter
+    MASTER_CONN_INFOS=$( psql_get "SHOW primary_conninfo" )
     if [ ! -n "$MASTER_CONN_INFOS" ]
     then
-        echo "UNKNOWN: Can't retrieve master connection information form recovery.conf file"
+        echo "UNKNOWN: Can't retrieve master connection information from primary_conninfo configuration parameter"
         exit 3
     fi
     debug "Master connection information: $MASTER_CONN_INFOS"