diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
index e7a9a58e0f..17460ed7b3 100644
--- a/target/s390x/cpu.h
+++ b/target/s390x/cpu.h
@@ -804,8 +804,6 @@ int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc);
 void s390_crw_mchk(void);
 void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
                        uint32_t io_int_parm, uint32_t io_int_word);
-/* instruction length set by unwind info */
-#define ILEN_UNWIND                 0
 #define RA_IGNORED                  0
 void s390_program_interrupt(CPUS390XState *env, uint32_t code, uintptr_t ra);
 /* service interrupts are floating therefore we must not pass an cpustate */