diff --git a/src/main/java/de/wyraz/homedatabroker/source/ModBusIPSource.java b/src/main/java/de/wyraz/homedatabroker/source/ModBusIPSource.java
index 4b3228d..eef449f 100644
--- a/src/main/java/de/wyraz/homedatabroker/source/ModBusIPSource.java
+++ b/src/main/java/de/wyraz/homedatabroker/source/ModBusIPSource.java
@@ -145,7 +145,7 @@ protected void schedule() {
 			if (!checkLastException(ex)) {
 				log.warn("Modbus error", ex);
 			} else {
-				log.info("Modbus error: {}", ex);
+				log.info("Modbus error: {}", ex.getMessage());
 			}
 		}
 	}