diff --git a/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/FileArchive.java b/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/FileArchive.java
index 0484b43dbd..a8004dc7ca 100644
--- a/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/FileArchive.java
+++ b/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/FileArchive.java
@@ -138,6 +138,9 @@ public class FileArchive implements Archive {
 
 	@Override
 	public boolean isChanged() {
+		if (isClosed()) {
+			return false;
+		}
 		return changed || fileDataTypeManager.isChanged();
 	}