diff --git a/ILSpy/TreeNodes/AssemblyTreeNode.cs b/ILSpy/TreeNodes/AssemblyTreeNode.cs
index 2d3aad07e..12211e632 100644
--- a/ILSpy/TreeNodes/AssemblyTreeNode.cs
+++ b/ILSpy/TreeNodes/AssemblyTreeNode.cs
@@ -89,6 +89,8 @@ namespace ICSharpCode.ILSpy.TreeNodes
 			RaisePropertyChanged("ExpandedIcon");
 			if (assemblyTask.IsFaulted) {
 				RaisePropertyChanged("ShowExpander"); // cannot expand assemblies with load error
+				// observe the exception so that the Task's finalizer doesn't re-throw it
+				try { assemblyTask.Wait(); } catch (AggregateException) {}
 			} else {
 				RaisePropertyChanged("Text"); // shortname might have changed
 			}