diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
index fa10b6d0c1..d4a52fbddb 100644
--- a/hw/misc/macio/cuda.c
+++ b/hw/misc/macio/cuda.c
@@ -179,7 +179,7 @@ static void set_counter(CUDAState *s, CUDATimer *ti, unsigned int val)
 {
     CUDA_DPRINTF("T%d.counter=%d\n", 1 + ti->index, val);
     ti->load_time = get_tb(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
-                           s->frequency);
+                           s->tb_frequency);
     ti->counter_value = val;
     cuda_timer_update(s, ti, ti->load_time);
 }
@@ -879,7 +879,7 @@ static void cuda_realizefn(DeviceState *dev, Error **errp)
     struct tm tm;
 
     s->timers[0].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_timer1, s);
-    s->timers[0].frequency = s->frequency;
+    s->timers[0].frequency = s->tb_frequency;
     s->timers[1].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_timer2, s);
     s->timers[1].frequency = (SCALE_US * 6000) / 4700;
 
@@ -910,7 +910,7 @@ static void cuda_initfn(Object *obj)
 }
 
 static Property cuda_properties[] = {
-    DEFINE_PROP_UINT64("frequency", CUDAState, frequency, 0),
+    DEFINE_PROP_UINT64("timebase-frequency", CUDAState, tb_frequency, 0),
     DEFINE_PROP_END_OF_LIST()
 };
 
diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
index 44f91d1e7f..a639b09e00 100644
--- a/hw/misc/macio/macio.c
+++ b/hw/misc/macio/macio.c
@@ -451,7 +451,7 @@ void macio_init(PCIDevice *d,
     macio_state->escc_mem = escc_mem;
     /* Note: this code is strongly inspirated from the corresponding code
        in PearPC */
-    qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency",
+    qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "timebase-frequency",
                          macio_state->frequency);
 
     qdev_init_nofail(DEVICE(d));
diff --git a/hw/ppc/mac.h b/hw/ppc/mac.h
index b501af1653..fa78115c95 100644
--- a/hw/ppc/mac.h
+++ b/hw/ppc/mac.h
@@ -99,7 +99,7 @@ typedef struct CUDAState {
     CUDATimer timers[2];
 
     uint32_t tick_offset;
-    uint64_t frequency;
+    uint64_t tb_frequency;
 
     uint8_t last_b;
     uint8_t last_acr;