diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index e4ed114ba0a7..66c7c13098b3 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -871,6 +871,16 @@ static void add_call_dest(struct objtool_file *file, struct instruction *insn,
 			               : arch_nop_insn(insn->len));
 
 		insn->type = sibling ? INSN_RETURN : INSN_NOP;
+
+		if (sibling) {
+			/*
+			 * We've replaced the tail-call JMP insn by two new
+			 * insn: RET; INT3, except we only have a single struct
+			 * insn here. Mark it retpoline_safe to avoid the SLS
+			 * warning, instead of adding another insn.
+			 */
+			insn->retpoline_safe = true;
+		}
 	}
 
 	if (mcount && !strcmp(insn->call_dest->name, "__fentry__")) {