1 files changed, 2 insertions, 1 deletions
diff --git a/src/net/java/games/jogl/impl/windows/WindowsGLContext.java b/src/net/java/games/jogl/impl/windows/WindowsGLContext.java
index f80b2a107..d26a88cc7 100644
--- a/src/net/java/games/jogl/impl/windows/WindowsGLContext.java
+++ b/src/net/java/games/jogl/impl/windows/WindowsGLContext.java
@@ -159,7 +159,8 @@ public abstract class WindowsGLContext extends GLContext {
         }
         if (!WGL.wglShareLists(hglrc2, hglrc)) {
           throw new GLException("wglShareLists(0x" + Long.toHexString(hglrc2) +
-                                ", 0x" + Long.toHexString(hglrc) + ") failed");
+                                ", 0x" + Long.toHexString(hglrc) + ") failed: error code " +
+                                WGL.GetLastError());
         }
       }
       GLContextShareSet.contextCreated(this);