diff --git a/src/main/java/me/retrodaredevil/io/modbus/AsciiDataEncoder.java b/src/main/java/me/retrodaredevil/io/modbus/AsciiDataEncoder.java
index e16b57f..0f5fd69 100644
--- a/src/main/java/me/retrodaredevil/io/modbus/AsciiDataEncoder.java
+++ b/src/main/java/me/retrodaredevil/io/modbus/AsciiDataEncoder.java
@@ -21,7 +21,7 @@ public void sendMessage(OutputStream outputStream, int address, ModbusMessage me
 		try {
 			outputStream.write(bytes);
 		} catch (IOException e) {
-			throw new ModbusRuntimeException(e);
+			throw new ModbusRuntimeException("Got exception while writing", e);
 		}
 	}
 	public static char[] toAscii(int address, ModbusMessage message){
@@ -115,7 +115,7 @@ public ModbusMessage readMessage(int expectedAddress, InputStream inputStream) {
 		try {
 			bytes = readLine(inputStream);
 		} catch (IOException e) {
-			throw new ModbusRuntimeException(e);
+			throw new ModbusRuntimeException("Got exception while reading", e);
 		}
 		return fromAscii(expectedAddress, bytes);
 	}
diff --git a/src/main/java/me/retrodaredevil/io/modbus/RTUDataEncoder.java b/src/main/java/me/retrodaredevil/io/modbus/RTUDataEncoder.java
index 90f21d0..9146ceb 100644
--- a/src/main/java/me/retrodaredevil/io/modbus/RTUDataEncoder.java
+++ b/src/main/java/me/retrodaredevil/io/modbus/RTUDataEncoder.java
@@ -31,7 +31,7 @@ public void sendMessage(OutputStream outputStream, int address, ModbusMessage me
 		try {
 			outputStream.write(bytes);
 		} catch (IOException e) {
-			throw new ModbusRuntimeException(e);
+			throw new ModbusRuntimeException("Got exception while writing", e);
 		}
 	}
 	public static byte[] toBytes(int address, ModbusMessage message){
@@ -56,7 +56,7 @@ public ModbusMessage readMessage(int expectedAddress, InputStream inputStream) {
 		try {
 			bytes = readBytes(inputStream);
 		} catch(IOException e){
-			throw new RuntimeException(e);
+			throw new ModbusRuntimeException("Got exception while reading", e);
 		}
 		return fromBytes(expectedAddress, bytes);
 	}