diff --git a/src/net/deltik/mc/signedit/SignText.java b/src/net/deltik/mc/signedit/SignText.java
index 661c009..11fad12 100644
--- a/src/net/deltik/mc/signedit/SignText.java
+++ b/src/net/deltik/mc/signedit/SignText.java
@@ -98,10 +98,14 @@ public void setTargetSign(@Nullable SignShim targetSign, @Nullable SideShim targ
         this.targetSignSide = targetSignSide != null ? targetSignSide : SideShim.FRONT;
     }
 
-    public void applySignAutoWax(Player player, ChatComms comms) {
+    public interface Applicator {
+        void applySign(Player player);
+    }
+
+    public void applySignAutoWax(Player player, ChatComms comms, Applicator applicator) {
         Sign sign = Objects.requireNonNull(getTargetSign());
         boolean needRewax = SignHelpers.bypassWaxBefore(sign, player, comms);
-        applySign(player);
+        applicator.applySign(player);
         if (needRewax) {
             SignHelpers.bypassWaxAfter(sign, player, comms);
         }
diff --git a/src/net/deltik/mc/signedit/SignTextHistory.java b/src/net/deltik/mc/signedit/SignTextHistory.java
index aa02f40..a0d48c7 100644
--- a/src/net/deltik/mc/signedit/SignTextHistory.java
+++ b/src/net/deltik/mc/signedit/SignTextHistory.java
@@ -49,22 +49,22 @@ public int redosRemaining() {
         return history.size() - tailPosition;
     }
 
-    public SignText undo() {
+    public SignText undo(ChatComms comms) {
         if (tailPosition <= 0) {
             throw new SignTextHistoryStackBoundsException("nothing_to_undo");
         }
         SignText previousSignText = history.get(tailPosition - 1);
-        previousSignText.revertSign(player);
+        previousSignText.applySignAutoWax(player, comms, previousSignText::revertSign);
         tailPosition--;
         return previousSignText;
     }
 
-    public SignText redo() {
+    public SignText redo(ChatComms comms) {
         if (tailPosition == history.size()) {
             throw new SignTextHistoryStackBoundsException("nothing_to_redo");
         }
         SignText nextSignText = history.get(tailPosition);
-        nextSignText.applySign(player);
+        nextSignText.applySignAutoWax(player, comms, nextSignText::applySign);
         tailPosition++;
         return nextSignText;
     }
diff --git a/src/net/deltik/mc/signedit/interactions/BookUiSignEditInteraction.java b/src/net/deltik/mc/signedit/interactions/BookUiSignEditInteraction.java
index a35bcdb..d9d7370 100644
--- a/src/net/deltik/mc/signedit/interactions/BookUiSignEditInteraction.java
+++ b/src/net/deltik/mc/signedit/interactions/BookUiSignEditInteraction.java
@@ -146,7 +146,7 @@ public void cleanup(Event event) {
         }
         ChatComms comms = commsBuilder.commandSender(player).build().comms();
 
-        signText.applySignAutoWax(player, comms);
+        signText.applySignAutoWax(player, comms, signText::applySign);
         if (signText.signTextChanged()) {
             historyManager.getHistory(player).push(signText);
         }
diff --git a/src/net/deltik/mc/signedit/interactions/CutSignEditInteraction.java b/src/net/deltik/mc/signedit/interactions/CutSignEditInteraction.java
index a827de5..2ffec48 100644
--- a/src/net/deltik/mc/signedit/interactions/CutSignEditInteraction.java
+++ b/src/net/deltik/mc/signedit/interactions/CutSignEditInteraction.java
@@ -74,7 +74,7 @@ public void interact(Player player, SignShim sign, SideShim side) {
 
         ChatComms comms = commsBuilder.commandSender(player).build().comms();
 
-        sourceSign.applySignAutoWax(player, comms);
+        sourceSign.applySignAutoWax(player, comms, sourceSign::applySign);
         if (sourceSign.signTextChanged()) {
             historyManager.getHistory(player).push(sourceSign);
         }
diff --git a/src/net/deltik/mc/signedit/interactions/PasteSignEditInteraction.java b/src/net/deltik/mc/signedit/interactions/PasteSignEditInteraction.java
index eb95a90..7c2289f 100644
--- a/src/net/deltik/mc/signedit/interactions/PasteSignEditInteraction.java
+++ b/src/net/deltik/mc/signedit/interactions/PasteSignEditInteraction.java
@@ -58,7 +58,7 @@ public void interact(Player player, SignShim sign, SideShim side) {
 
         ChatComms comms = commsBuilder.commandSender(player).build().comms();
 
-        signText.applySignAutoWax(player, comms);
+        signText.applySignAutoWax(player, comms, signText::applySign);
         if (signText.signTextChanged()) {
             historyManager.getHistory(player).push(signText);
         }
diff --git a/src/net/deltik/mc/signedit/interactions/SetSignEditInteraction.java b/src/net/deltik/mc/signedit/interactions/SetSignEditInteraction.java
index 6a43667..6fb5b83 100644
--- a/src/net/deltik/mc/signedit/interactions/SetSignEditInteraction.java
+++ b/src/net/deltik/mc/signedit/interactions/SetSignEditInteraction.java
@@ -56,7 +56,7 @@ public void interact(Player player, SignShim sign, SideShim side) {
 
         ChatComms comms = commsBuilder.commandSender(player).build().comms();
 
-        signText.applySignAutoWax(player, comms);
+        signText.applySignAutoWax(player, comms, signText::applySign);
         if (signText.signTextChanged()) {
             historyManager.getHistory(player).push(signText);
         }
diff --git a/src/net/deltik/mc/signedit/subcommands/RedoSignSubcommand.java b/src/net/deltik/mc/signedit/subcommands/RedoSignSubcommand.java
index de0daa8..79943c5 100644
--- a/src/net/deltik/mc/signedit/subcommands/RedoSignSubcommand.java
+++ b/src/net/deltik/mc/signedit/subcommands/RedoSignSubcommand.java
@@ -45,8 +45,8 @@ public RedoSignSubcommand(
     @Override
     public SignEditInteraction execute() {
         SignTextHistory history = historyManager.getHistory(player);
-        SignText redoneSignText = history.redo();
         ChatComms comms = commsBuilder.commandSender(player).build().comms();
+        SignText redoneSignText = history.redo(comms);
         comms.compareSignText(redoneSignText);
         return null;
     }
diff --git a/src/net/deltik/mc/signedit/subcommands/UndoSignSubcommand.java b/src/net/deltik/mc/signedit/subcommands/UndoSignSubcommand.java
index 984202d..f1c14f4 100644
--- a/src/net/deltik/mc/signedit/subcommands/UndoSignSubcommand.java
+++ b/src/net/deltik/mc/signedit/subcommands/UndoSignSubcommand.java
@@ -45,8 +45,8 @@ public UndoSignSubcommand(
     @Override
     public SignEditInteraction execute() {
         SignTextHistory history = historyManager.getHistory(player);
-        SignText undoneSignText = history.undo();
         ChatComms comms = commsBuilder.commandSender(player).build().comms();
+        SignText undoneSignText = history.undo(comms);
         comms.compareSignText(undoneSignText);
         return null;
     }