diff --git a/frontend/drivers/platform_darwin.m b/frontend/drivers/platform_darwin.m
index 65b49ae891..894c60d48b 100644
--- a/frontend/drivers/platform_darwin.m
+++ b/frontend/drivers/platform_darwin.m
@@ -683,7 +683,7 @@ static uint64_t frontend_darwin_get_mem_total(void)
 
 static uint64_t frontend_darwin_get_mem_free(void)
 {
-#ifdef OSX
+#if defined(OSX) && !defined(OSX_PPC)
     vm_size_t page_size;
     vm_statistics64_data_t vm_stats;
     mach_port_t mach_port        = mach_host_self();