diff --git a/System Abstraction/win32/cdb_file.c b/System Abstraction/win32/cdb_file.c
index 8c31f43..a819281 100644
--- a/System Abstraction/win32/cdb_file.c	
+++ b/System Abstraction/win32/cdb_file.c	
@@ -118,10 +118,12 @@ void * sus_fileFileToMemroy(sus_File file){
 }
 
 void sus_fileClose(sus_File file){
-    FlushViewOfFile(file->memroy, 0);
-    UnmapViewOfFile(file->memroy);
-    CloseHandle(file->fileMapHandle);
-    CloseHandle(file->fileHandle);
+    if(file->memroy == NULL){
+        FlushViewOfFile(file->memroy, 0);
+        UnmapViewOfFile(file->memroy);
+        CloseHandle(file->fileMapHandle);
+        CloseHandle(file->fileHandle);
+    }
     sus_heapFree(file);
 }