diff --git a/src/osgPlugins/md2/ReaderWriterMD2.cpp b/src/osgPlugins/md2/ReaderWriterMD2.cpp
index ea228780c..8062fbe0d 100644
--- a/src/osgPlugins/md2/ReaderWriterMD2.cpp
+++ b/src/osgPlugins/md2/ReaderWriterMD2.cpp
@@ -161,7 +161,7 @@ load_md2 (const char *filename, const osgDB::ReaderWriter::Options* options)
     }
 
     file_fd = open (filename, O_RDONLY);
-    if (file_fd <= 0) {
+    if (file_fd < 0) {
         return NULL;
     }