diff --git a/spm/cactus/cactus_main.c b/spm/cactus/cactus_main.c
index 1d81988..87ef837 100644
--- a/spm/cactus/cactus_main.c
+++ b/spm/cactus/cactus_main.c
@@ -282,6 +282,10 @@
 			ffa_ret = cactus_error_resp(vm_id, source);
 			break;
 		}
+		case CACTUS_REQ_SIMD_FILL_CMD:
+			fill_simd_vectors();
+			ffa_ret = cactus_success_resp(vm_id, source);
+			break;
 		default:
 			/*
 			 * Currently direct message test is handled here.