diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 2584e94e2134..fda7eac23f87 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -117,7 +117,7 @@ asmlinkage int m68k_clone(struct pt_regs *regs)
 {
 	/* regs will be equal to current_pt_regs() */
 	struct kernel_clone_args args = {
-		.flags		= regs->d1 & ~CSIGNAL,
+		.flags		= (u32)(regs->d1) & ~CSIGNAL,
 		.pidfd		= (int __user *)regs->d3,
 		.child_tid	= (int __user *)regs->d4,
 		.parent_tid	= (int __user *)regs->d3,