diff --git a/src/target/cortex_a.c b/src/target/cortex_a.c
index bc4aa33b4..e209c801c 100644
--- a/src/target/cortex_a.c
+++ b/src/target/cortex_a.c
@@ -1420,6 +1420,7 @@ static int cortex_a_step(struct target *target, int current, target_addr_t addre
 
 	/* Setup single step breakpoint */
 	stepbreakpoint.address = address;
+	stepbreakpoint.asid = 0;
 	stepbreakpoint.length = (arm->core_state == ARM_STATE_THUMB)
 		? 2 : 4;
 	stepbreakpoint.type = BKPT_HARD;