diff --git a/target/arm/helper.c b/target/arm/helper.c
index 3f4211b5723df8259777f0179bdcbcfd214a8bb9..76b608f0bac5864ffdc11b499fc7db811c3f2547 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6857,7 +6857,7 @@ void arm_cpu_do_interrupt(CPUState *cs)
                   new_el);
     if (qemu_loglevel_mask(CPU_LOG_INT)
         && !excp_is_internal(cs->exception_index)) {
-        qemu_log_mask(CPU_LOG_INT, "...with ESR %x/0x%" PRIx32 "\n",
+        qemu_log_mask(CPU_LOG_INT, "...with ESR 0x%x/0x%" PRIx32 "\n",
                       env->exception.syndrome >> ARM_EL_EC_SHIFT,
                       env->exception.syndrome);
     }