diff --git a/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/editor/targetdefinition/TargetEditor.java b/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/editor/targetdefinition/TargetEditor.java
index 1c41f50a22..859608f381 100644
--- a/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/editor/targetdefinition/TargetEditor.java
+++ b/ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/editor/targetdefinition/TargetEditor.java
@@ -532,7 +532,8 @@ private ITargetDefinition loadTargetDefinition() throws CoreException {
 				fTarget = service.newTarget();
 				throw e;
 			}
-			TargetEditor.this.getTargetChangedListener().contentsChanged(fTarget, this, true, false);
+			PlatformUI.getWorkbench().getDisplay().asyncExec(
+					() -> TargetEditor.this.getTargetChangedListener().contentsChanged(fTarget, this, true, false));
 			return fTarget;
 		}