diff --git a/hikaricp-common/src/test/java/com/zaxxer/hikari/TestConnections.java b/hikaricp-common/src/test/java/com/zaxxer/hikari/TestConnections.java
index 1e23f064..69f3e8ff 100644
--- a/hikaricp-common/src/test/java/com/zaxxer/hikari/TestConnections.java
+++ b/hikaricp-common/src/test/java/com/zaxxer/hikari/TestConnections.java
@@ -139,7 +139,7 @@ public class TestConnections
       }
       finally {
          ds.close();
-         System.getProperties().remove("com.zaxxer.hikari.housekeeping.periodMs", "100");
+         System.getProperties().remove("com.zaxxer.hikari.housekeeping.periodMs");
       }
    }