diff --git a/command/hook_count.go b/command/hook_count.go
index 150ae438e..127284d34 100644
--- a/command/hook_count.go
+++ b/command/hook_count.go
@@ -42,6 +42,10 @@ func (h *CountHook) PreApply(
 	h.Lock()
 	defer h.Unlock()
 
+	if d.Empty() {
+		return terraform.HookActionContinue, nil
+	}
+
 	if h.pending == nil {
 		h.pending = make(map[string]countHookAction)
 	}
diff --git a/command/hook_ui.go b/command/hook_ui.go
index 8d8f4539e..a53edfa38 100644
--- a/command/hook_ui.go
+++ b/command/hook_ui.go
@@ -59,6 +59,11 @@ func (h *UiHook) PreApply(
 	d *terraform.InstanceDiff) (terraform.HookAction, error) {
 	h.once.Do(h.init)
 
+	// if there's no diff, there's nothing to output
+	if d.Empty() {
+		return terraform.HookActionContinue, nil
+	}
+
 	id := n.HumanId()
 
 	op := uiResourceModify