diff --git a/global.h b/global.h
index 1dd6bab..364643f 100644
--- a/global.h
+++ b/global.h
@@ -711,7 +711,7 @@ int32_t adds32_safe(int32_t a, int32_t b);
 /** symbol for beginning of the application
  *  @note this symbol will be provided by the linker script
  */
-extern char __application_beginning;
+extern uint32_t __application_beginning;
 /** symbol for end of the application
  *  @note this symbol will be provided by the linker script
  */