diff --git a/src/common/compat.c b/src/common/compat.c
index 3174da6479c9f39d587f5872e2206c5a9e300e6f..82332f1016a3fc0c01058c0a24f9fe804999e9b2 100644
--- a/src/common/compat.c
+++ b/src/common/compat.c
@@ -183,11 +183,11 @@ tor_mmap_file(const char *filename)
   strlcpy(tfilename,filename,MAX_PATH);
 #endif
   file_handle = CreateFile(tfilename,
-                                GENERIC_READ, FILE_SHARE_READ,
-                                NULL,
-                                OPEN_EXISTING,
-                                FILE_ATTRIBUTE_NORMAL,
-                                0);
+                           GENERIC_READ, FILE_SHARE_READ,
+                           NULL,
+                           OPEN_EXISTING,
+                           FILE_ATTRIBUTE_NORMAL,
+                           0);
 
   if (file_handle == INVALID_HANDLE_VALUE)
     goto win_err;