diff --git a/Controllers/EKController/EKController.cpp b/Controllers/EKController/EKController.cpp
index 71543521..fd283c43 100644
--- a/Controllers/EKController/EKController.cpp
+++ b/Controllers/EKController/EKController.cpp
@@ -10,7 +10,7 @@
 \*---------------------------------------------------------*/
 
 #include "EKController.h"
-#include "StringUtils.cpp"
+#include "StringUtils.h"
 
 static unsigned char ek_colour_mode_data[][16] =
 {