diff --git a/libvapours/include/vapours/ams/ams_target_firmware.h b/libvapours/include/vapours/ams/ams_target_firmware.h
index 09d15a4e..1e1f7be6 100644
--- a/libvapours/include/vapours/ams/ams_target_firmware.h
+++ b/libvapours/include/vapours/ams/ams_target_firmware.h
@@ -32,3 +32,4 @@
 
 #define ATMOSPHERE_TARGET_FIRMWARE_MIN ATMOSPHERE_TARGET_FIRMWARE_100
 #define ATMOSPHERE_TARGET_FIRMWARE_MAX ATMOSPHERE_TARGET_FIRMWARE_CURRENT
+#define ATMOSPHERE_TARGET_FIRMWARE_COUNT ((ATMOSPHERE_TARGET_FIRMWARE_MAX - ATMOSPHERE_TARGET_FIRMWARE_MIN) + 1)
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