diff --git a/package/Win-NSIS/flightgear-nightly-vs2010.nsi b/package/Win-NSIS/flightgear-nightly-vs2010.nsi
index 27d610075..3e50f32be 100644
--- a/package/Win-NSIS/flightgear-nightly-vs2010.nsi
+++ b/package/Win-NSIS/flightgear-nightly-vs2010.nsi
@@ -82,7 +82,7 @@ Section "" ;No components page, name is not important
   File ${OSGInstallDir}\bin\osg${OSGSoNumber}-osgSim.dll
   File ${OSGInstallDir}\bin\osg${OSGSoNumber}-osgFX.dll
   
-  File ${OSGInstallDir}\bin\ot12-OpenThreads.dll
+  File ${OSGInstallDir}\bin\ot13-OpenThreads.dll
   
   File ${ThirdPartyBinDir}\*.dll
   
diff --git a/package/Win-NSIS/flightgear64-nightly-vs2010.nsi b/package/Win-NSIS/flightgear64-nightly-vs2010.nsi
index f8d03de78..8a0c591b9 100644
--- a/package/Win-NSIS/flightgear64-nightly-vs2010.nsi
+++ b/package/Win-NSIS/flightgear64-nightly-vs2010.nsi
@@ -81,7 +81,7 @@ Section "" ;No components page, name is not important
   File ${OSGInstallDir}\bin\osg${OSGSoNumber}-osgSim.dll
   File ${OSGInstallDir}\bin\osg${OSGSoNumber}-osgFX.dll
   
-  File ${OSGInstallDir}\bin\ot12-OpenThreads.dll
+  File ${OSGInstallDir}\bin\ot13-OpenThreads.dll
   
   File ${ThirdPartyBinDir}\*.dll