diff --git a/firmware/hw_layer/mass_storage/usb_msd.h b/firmware/hw_layer/mass_storage/usb_msd.h
index 4fa2c47e2b..d4466b0842 100644
--- a/firmware/hw_layer/mass_storage/usb_msd.h
+++ b/firmware/hw_layer/mass_storage/usb_msd.h
@@ -25,7 +25,7 @@
 
 /* Default to disabled for USB Mass Storage */
 #if !defined(HAL_USE_MASS_STORAGE_USB)
-#  define HAL_USE_MASS_STORAGE_USB   FALSE
+#  define HAL_USE_MASS_STORAGE_USB   TRUE
 #endif
 
 #if HAL_USE_MASS_STORAGE_USB || defined(__DOXYGEN__)
diff --git a/firmware/iar/ch.ewp b/firmware/iar/ch.ewp
index 063ca2c129..ef8ff867b5 100644
--- a/firmware/iar/ch.ewp
+++ b/firmware/iar/ch.ewp
@@ -336,6 +336,7 @@
           <state>$PROJ_DIR$\..\hw_layer\algo</state>
           <state>$PROJ_DIR$\..\hw_layer\lcd</state>
           <state>$PROJ_DIR$\..\hw_layer\stm32f4</state>
+          <state>$PROJ_DIR$\..\hw_layer\mass_storage</state>
           <state>$PROJ_DIR$\..\hw_layer\serial_over_usb</state>
           <state>$PROJ_DIR$\..\hw_layer</state>
           <state>$PROJ_DIR$\..\ext</state>
@@ -2751,6 +2752,21 @@
         <name>$PROJ_DIR$\..\hw_layer\lcd\lcd_HD44780.h</name>
       </file>
     </group>
+    <group>
+      <name>mass_storage</name>
+      <file>
+        <name>$PROJ_DIR$\..\hw_layer\mass_storage\usb_msd.c</name>
+      </file>
+      <file>
+        <name>$PROJ_DIR$\..\hw_layer\mass_storage\usb_msd.h</name>
+      </file>
+      <file>
+        <name>$PROJ_DIR$\..\hw_layer\mass_storage\usb_msd_cfg.c</name>
+      </file>
+      <file>
+        <name>$PROJ_DIR$\..\hw_layer\mass_storage\usb_msd_cfg.h</name>
+      </file>
+    </group>
     <group>
       <name>serial_over_usb</name>
       <file>
@@ -3242,6 +3258,12 @@
       <file>
         <name>$PROJ_DIR$\..\chibios\os\hal\platforms\STM32\RTCv2\rtc_lld.h</name>
       </file>
+      <file>
+        <name>$PROJ_DIR$\..\chibios\os\hal\platforms\STM32\sdc_lld.c</name>
+      </file>
+      <file>
+        <name>$PROJ_DIR$\..\chibios\os\hal\platforms\STM32\sdc_lld.h</name>
+      </file>
       <file>
         <name>$PROJ_DIR$\..\chibios\os\hal\platforms\STM32\USARTv1\serial_lld.c</name>
       </file>