diff --git a/libraries/AP_ADC/examples/AP_ADC_test/AP_ADC_test.pde b/libraries/AP_ADC/examples/AP_ADC_test/AP_ADC_test.pde
index 3a16852266..a890ef5b90 100644
--- a/libraries/AP_ADC/examples/AP_ADC_test/AP_ADC_test.pde
+++ b/libraries/AP_ADC/examples/AP_ADC_test/AP_ADC_test.pde
@@ -9,6 +9,7 @@
 #include <AP_Common.h>
 #include <AP_Math.h>
 #include <AP_Param.h>
+#include <StorageManager.h>
 #include <AP_Progmem.h>
 
 #include <AP_HAL.h>