diff --git a/tests/integration/replication-psync.tcl b/tests/integration/replication-psync.tcl
index 3a41ceb2..da1e9cf5 100644
--- a/tests/integration/replication-psync.tcl
+++ b/tests/integration/replication-psync.tcl
@@ -47,7 +47,7 @@ proc test_psync {descr duration backlog_size backlog_ttl delay cond diskless rec
 
             # Check that the background clients are actually writing.
             test {Detect write load to master} {
-                wait_for_condition 50 100 {
+                wait_for_condition 50 1000 {
                     [$master dbsize] > 100
                 } else {
                     fail "Can't detect write load from background clients."