diff --git a/qemu/target/arm/cpu.h b/qemu/target/arm/cpu.h
index 58ba65e3..323393d0 100644
--- a/qemu/target/arm/cpu.h
+++ b/qemu/target/arm/cpu.h
@@ -2453,7 +2453,7 @@ bool write_cpustate_to_list(ARMCPU *cpu);
 
 #if defined(TARGET_AARCH64)
 #  define TARGET_PHYS_ADDR_SPACE_BITS 48
-#  define TARGET_VIRT_ADDR_SPACE_BITS 64
+#  define TARGET_VIRT_ADDR_SPACE_BITS 48
 #else
 #  define TARGET_PHYS_ADDR_SPACE_BITS 40
 #  define TARGET_VIRT_ADDR_SPACE_BITS 32