diff --git a/src/Testcontainers.CosmosDb/CosmosDbBuilder.cs b/src/Testcontainers.CosmosDb/CosmosDbBuilder.cs
index 1b5838fd2..b25393ab4 100644
--- a/src/Testcontainers.CosmosDb/CosmosDbBuilder.cs
+++ b/src/Testcontainers.CosmosDb/CosmosDbBuilder.cs
@@ -45,7 +45,7 @@ protected override CosmosDbBuilder Init()
         return base.Init()
             .WithImage(CosmosDbImage)
             .WithPortBinding(CosmosDbPort, true)
-            .WithWaitStrategy(Wait.ForUnixContainer().UntilMessageIsLogged("Started"));
+            .WithWaitStrategy(Wait.ForUnixContainer().UntilMessageIsLogged("Started\\r?\\n"));
     }
 
     /// <inheritdoc />