diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index 5e79575..cce2dec 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -125,6 +125,10 @@ static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
 }
 
+#if defined(__FreeBSD__)
+#undef round_page
+#endif
+
 static hwaddr round_page(hwaddr addr)
 {
     return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index 2f27754..b8c6678 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -59,6 +59,10 @@ static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
 }
 
+#if defined(__FreeBSD__)
+#undef round_page
+#endif
+
 static hwaddr round_page(hwaddr addr)
 {
     return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;