diff --git a/arch/arm/mach-msm/bam_dmux.c b/arch/arm/mach-msm/bam_dmux.c
index 4dac062..89d7fc9 100644
--- a/arch/arm/mach-msm/bam_dmux.c
+++ b/arch/arm/mach-msm/bam_dmux.c
@@ -2036,6 +2036,7 @@
 		goto register_bam_failed;
 	}
 	a2_device_handle = h;
+	toggle_apps_ack();
 
 	return 0;