diff --git a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/properties/TestcontainersPropertySource.java b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/properties/TestcontainersPropertySource.java
index 10bcb2a9864c..d2df1e65b101 100644
--- a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/properties/TestcontainersPropertySource.java
+++ b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/properties/TestcontainersPropertySource.java
@@ -129,7 +129,7 @@ static TestcontainersPropertySource getOrAdd(ConfigurableEnvironment environment
 			return getOrAdd(environment);
 		}
 		Assert.state(propertySource instanceof TestcontainersPropertySource,
-				"Incorrect DynamicValuesPropertySource type registered");
+				"Incorrect TestcontainersPropertySource type registered");
 		return ((TestcontainersPropertySource) propertySource);
 	}