diff --git a/src/AzureIoTProtocol_MQTT.h b/src/AzureIoTProtocol_MQTT.h
index e656f52..672cd7a 100644
--- a/src/AzureIoTProtocol_MQTT.h
+++ b/src/AzureIoTProtocol_MQTT.h
@@ -4,7 +4,7 @@
 #ifndef AZUREIOTPROTOCOLMQTT_H
 #define AZUREIOTPROTOCOLMQTT_H
 
-#include "azure_umqtt_c\mqtt_client.h"
+#include "azure_umqtt_c/mqtt_client.h"
 
 #define AzureIoTProtocolMQTTVersion "1.0.21"