diff --git a/src/target/target.h b/src/target/target.h
index 0096cae10..6020400f3 100644
--- a/src/target/target.h
+++ b/src/target/target.h
@@ -153,7 +153,7 @@ struct target {
 	struct target_event_action *event_action;
 
 	int reset_halt;						/* attempt resetting the CPU into the halted mode? */
-	uint32_t working_area;				/* working area (initialised RAM). Evaluated
+	target_addr_t working_area;				/* working area (initialised RAM). Evaluated
 										 * upon first allocation from virtual/physical address. */
 	bool working_area_virt_spec;		/* virtual address specified? */
 	target_addr_t working_area_virt;			/* virtual address */