diff --git a/include/FlashErase.h b/include/FlashErase.h
index a0fc9cc..250c777 100644
--- a/include/FlashErase.h
+++ b/include/FlashErase.h
@@ -6,9 +6,8 @@
 #ifndef FLASHERASE_H
 #define FLASHERASE_H
 
-#include "Filesystem.h"
 #include "MainBD.h"
 
-void doErase(mbed::BlockDevice &bd, mbed::FileSystem &fs);
+void doErase(mbed::BlockDevice &bd);
 
 #endif
diff --git a/include/MyUSBMSD.h b/include/MyUSBMSD.h
index 84d6d34..51c7241 100644
--- a/include/MyUSBMSD.h
+++ b/include/MyUSBMSD.h
@@ -6,7 +6,6 @@
 #ifndef MYUSBMSD_H
 #define MYUSBMSD_H
 
-#include "Filesystem.h"
 #include "USBMSD.h"
 #include "mbed.h"
 
@@ -20,5 +19,5 @@
 	virtual const uint8_t *string_iproduct_desc();
 };
 
-void doUSBMSD(mbed::BlockDevice &bd, mbed::FileSystem &fs);
+void doUSBMSD(mbed::BlockDevice &bd);
 #endif
diff --git a/src/FlashErase.cpp b/src/FlashErase.cpp
index 54b5d17..a84f71d 100644
--- a/src/FlashErase.cpp
+++ b/src/FlashErase.cpp
@@ -9,7 +9,7 @@
 #include <functional>
 
 // function to erase the flash
-void doErase(mbed::BlockDevice &bd, mbed::FileSystem &fs) {
+void doErase(mbed::BlockDevice &bd) {
 	printf("Initializing the block device... ");
 	fflush(stdout);
 	int err = bd.init();
diff --git a/src/MyUSBMSD.cpp b/src/MyUSBMSD.cpp
index 51e026a..08d6bbc 100644
--- a/src/MyUSBMSD.cpp
+++ b/src/MyUSBMSD.cpp
@@ -5,7 +5,6 @@
 
 #include "MyUSBMSD.h"
 #include "ButtonThread.h"
-#include "Filesystem.h"
 #include "mbed.h"
 
 // create a custom usb mass storage subclass to override
@@ -26,7 +25,7 @@
 	return string_iproduct_descriptor;
 }
 
-void doUSBMSD(mbed::BlockDevice &bd, mbed::FileSystem &fs) {
+void doUSBMSD(mbed::BlockDevice &bd) {
 	printf("Switching to the usb mass storage mode...\n");
 	MyUSBMSD usb(&bd, true, 0x1209, 0x10);
 
diff --git a/src/main.cpp b/src/main.cpp
index 0645e07..feee60a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -25,11 +25,11 @@
 		unmountFilesystem(mainBD, mainFS);
 
 		if (presses == 1) {
-			doUSBMSD(mainBD, mainFS);
+			doUSBMSD(mainBD);
 		}
 
 		if (presses == 2) {
-			doErase(mainBD, mainFS);
+			doErase(mainBD);
 		}
 
 		mountFilesystem(mainBD, mainFS);