diff --git a/arch/x86/um/nommu/zpoline.c b/arch/x86/um/nommu/zpoline.c
index 2e30ee7193625e..64b9dec1a80192 100644
--- a/arch/x86/um/nommu/zpoline.c
+++ b/arch/x86/um/nommu/zpoline.c
@@ -209,11 +209,8 @@ static int __init setup_zpoline_trampoline(void)
 	 * pretending to be syscall instruction by putting return
 	 * address in %rcx.
 	 */
-	/* 48 8b 0c 24               mov    (%rsp),%rcx */
-	__zpoline_start[ptr++] = 0x48;
-	__zpoline_start[ptr++] = 0x8b;
-	__zpoline_start[ptr++] = 0x0c;
-	__zpoline_start[ptr++] = 0x24;
+	/* 59                   pop    %rcx */
+	__zpoline_start[ptr++] = 0x59;
 
 	/* 41 ff e3                jmp    *%r11 */
 	__zpoline_start[ptr++] = 0x41;