diff --git a/examples/iec61850_client_example_files/file-tool.c b/examples/iec61850_client_example_files/file-tool.c
index 19ee9340..5b219595 100644
--- a/examples/iec61850_client_example_files/file-tool.c
+++ b/examples/iec61850_client_example_files/file-tool.c
@@ -225,7 +225,7 @@ getFile(IedConnection con)
 
     char* localFilename = basename(bname);
 
-    FILE* fp = fopen(localFilename, "w");
+    FILE* fp = fopen(localFilename, "wb");
 
     if (fp != NULL) {