diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index f3698f19b5..9679415e43 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -566,7 +566,9 @@ static int kvm_arch_set_tsc_khz(CPUState *cs)
                        -ENOTSUP;
         if (cur_freq <= 0 || cur_freq != env->tsc_khz) {
             error_report("warning: TSC frequency mismatch between "
-                         "VM and host, and TSC scaling unavailable");
+                         "VM (%" PRId64 " kHz) and host (%d kHz), "
+                         "and TSC scaling unavailable",
+                         env->tsc_khz, cur_freq);
             return r;
         }
     }