diff --git a/g2core/g2core_info.h b/g2core/g2core_info.h
index f9a5344a2..42776c31e 100644
--- a/g2core/g2core_info.h
+++ b/g2core/g2core_info.h
@@ -21,7 +21,7 @@
 #ifndef G2CORE_INFO_H_ONCE
 #define G2CORE_INFO_H_ONCE
 
-#define G2CORE_FIRMWARE_BUILD			100.12  // Changes to USB serial for SAMS70 and SAM8X targets
+#define G2CORE_FIRMWARE_BUILD			100.13  // cleanup in preparation for M7
 #ifdef GIT_VERSION
 #define G2CORE_FIRMWARE_BUILD_STRING	GIT_VERSION
 #else