diff --git a/src/osgDB/OutputStream.cpp b/src/osgDB/OutputStream.cpp
index 0b0d11d3a..ed0f6a3e9 100644
--- a/src/osgDB/OutputStream.cpp
+++ b/src/osgDB/OutputStream.cpp
@@ -79,8 +79,8 @@ OutputStream::~OutputStream()
 
 void OutputStream::setFileVersion( const std::string& d, int v )
 {
-	if (d.empty()) _targetFileVersion = v;
-	else _domainVersionMap[d] = v;
+    if (d.empty()) _targetFileVersion = v;
+    else _domainVersionMap[d] = v;
 }
 
 int OutputStream::getFileVersion( const std::string& d ) const