diff --git a/qemu/unicorn_common.h b/qemu/unicorn_common.h
index 71adf268..9e58e2a1 100644
--- a/qemu/unicorn_common.h
+++ b/qemu/unicorn_common.h
@@ -10,13 +10,13 @@
 static inline bool cpu_physical_mem_read(AddressSpace *as, hwaddr addr,
                                             uint8_t *buf, int len)
 {
-    return !cpu_physical_memory_rw(as, addr, (void *)buf, len, 0);
+    return cpu_physical_memory_rw(as, addr, (void *)buf, len, 0);
 }
 
 static inline bool cpu_physical_mem_write(AddressSpace *as, hwaddr addr,
                                             const uint8_t *buf, int len)
 {
-    return !cpu_physical_memory_rw(as, addr, (void *)buf, len, 1);
+    return cpu_physical_memory_rw(as, addr, (void *)buf, len, 1);
 }
 
 void tb_cleanup(struct uc_struct *uc);