diff --git a/repertory/librepertory/src/drives/winfsp/winfsp_drive.cpp b/repertory/librepertory/src/drives/winfsp/winfsp_drive.cpp
index 15c42f8e..4eeda8d4 100644
--- a/repertory/librepertory/src/drives/winfsp/winfsp_drive.cpp
+++ b/repertory/librepertory/src/drives/winfsp/winfsp_drive.cpp
@@ -1119,9 +1119,9 @@ auto winfsp_drive::SetFileSize(PVOID /*file_node*/, PVOID file_desc,
           end_of_file_info.EndOfFile.QuadPart = static_cast<LONGLONG>(new_size);
           return ::SetFileInformationByHandle(cur_handle, FileEndOfFileInfo,
                                               &end_of_file_info,
-                                              sizeof(end_of_file_info)) != 0
-                     ? api_error::success
-                     : api_error::os_error;
+                                              sizeof(end_of_file_info)) == 0
+                     ? api_error::os_error
+                     : api_error::success;
         }));
   }