diff --git a/indra/newview/viewer_manifest.py b/indra/newview/viewer_manifest.py
index 8c0bbc26c38c261670978bfb8d1fa40993c2c6d2..8754e11614af3511d0903b1a8b0b9c634cb51f74 100755
--- a/indra/newview/viewer_manifest.py
+++ b/indra/newview/viewer_manifest.py
@@ -526,6 +526,9 @@ def construct(self):
             # For textures
             self.path("openjpeg.dll")
 
+            # For OpenGL extensions
+            self.path("epoxy-0.dll")
+
             # SLVoice executable
             with self.prefix(src=os.path.join(pkgdir, 'bin', 'release')):
                 self.path("SLVoice.exe")