diff --git a/include/ui/game_screen.hpp b/include/ui/game_screen.hpp
index a4ca889b..cd200126 100644
--- a/include/ui/game_screen.hpp
+++ b/include/ui/game_screen.hpp
@@ -437,6 +437,7 @@ private:
 
     // Macro cooldown cache: maps macro ID → resolved primary spell ID (0 = no spell found)
     std::unordered_map<uint32_t, uint32_t> macroPrimarySpellCache_;
+    size_t macroCacheSpellCount_ = 0;  // invalidates cache when spell list changes
     uint32_t resolveMacroPrimarySpellId(uint32_t macroId, game::GameHandler& gameHandler);
 
     // Death Knight rune bar: client-predicted fill (0.0=depleted, 1.0=ready) for smooth animation
diff --git a/src/ui/game_screen.cpp b/src/ui/game_screen.cpp
index 7c4bd892..fafe0379 100644
--- a/src/ui/game_screen.cpp
+++ b/src/ui/game_screen.cpp
@@ -8643,6 +8643,12 @@ VkDescriptorSet GameScreen::getSpellIcon(uint32_t spellId, pipeline::AssetManage
 }
 
 uint32_t GameScreen::resolveMacroPrimarySpellId(uint32_t macroId, game::GameHandler& gameHandler) {
+    // Invalidate cache when spell list changes (learning/unlearning spells)
+    size_t curSpellCount = gameHandler.getKnownSpells().size();
+    if (curSpellCount != macroCacheSpellCount_) {
+        macroPrimarySpellCache_.clear();
+        macroCacheSpellCount_ = curSpellCount;
+    }
     auto cacheIt = macroPrimarySpellCache_.find(macroId);
     if (cacheIt != macroPrimarySpellCache_.end()) return cacheIt->second;