diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 11df93731857..207f195dff56 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -132,7 +132,7 @@ static int have_root __initdata;
 static int have_console __initdata;
 
 /* Set in uml_mem_setup and modified in linux_main */
-long long physmem_size = 32 * 1024 * 1024;
+long long physmem_size = 64 * 1024 * 1024;
 EXPORT_SYMBOL(physmem_size);
 
 static const char *usage_string =