diff --git a/libpurgeablemem/cpp/src/purgeable_ashmem.cpp b/libpurgeablemem/cpp/src/purgeable_ashmem.cpp
index 3ac9630f969db39f1262804c26f4d67563de2b50..4e2498369aaaee3b5a2b79d3be4bf770c91fd9b7 100644
--- a/libpurgeablemem/cpp/src/purgeable_ashmem.cpp
+++ b/libpurgeablemem/cpp/src/purgeable_ashmem.cpp
@@ -98,7 +98,7 @@ bool PurgeableAshMem::IsPurged()
     }
     int ret = ioctl(ashmemFd_, PURGEABLE_ASHMEM_IS_PURGED);
     PM_HILOG_DEBUG(LOG_CORE, "%{public}s: IsPurged %{public}d", __func__, ret);
-    return ret ? true : false;
+    return ret > 0 ? true : false;
 }
 
 bool PurgeableAshMem::CreatePurgeableData_()