diff --git a/Source/Client/Mode/CGameMode.h b/Source/Client/Mode/CGameMode.h
index c977785a..2b0b30c5 100644
--- a/Source/Client/Mode/CGameMode.h
+++ b/Source/Client/Mode/CGameMode.h
@@ -409,7 +409,7 @@ public:
   std::string GetActiveSkillEffectTimeText(int skillId, int* activeSkillId);
   void ProcessStatusIconTooltip(int x, int y);
   bool IsActiveSkillEffectId(std::uint32_t id);
-  __declspec(noinline) bool IsExcludedSkillEffectId(std::uint32_t id);
+  __declspec(noinline) int IsExcludedSkillEffectId(std::uint32_t id);
   int SubD07740(int id, int defaultResult);
   bool AppendGuildEmblem(std::vector<char>& output, std::vector<std::string>& names, int guildId, int unused);
   void ReceiveResultNotice(int result);
diff --git a/Source/Client/Mode/GameMode.cpp b/Source/Client/Mode/GameMode.cpp
index 3afda732..9eb93187 100644
--- a/Source/Client/Mode/GameMode.cpp
+++ b/Source/Client/Mode/GameMode.cpp
@@ -641,7 +641,7 @@ bool CGameMode::IsActiveSkillEffectId(std::uint32_t id) {
 
 // OFFSET: 0x00D07720
 // FUNCTION: fn_21582
-bool CGameMode::IsExcludedSkillEffectId(std::uint32_t id) {
+int CGameMode::IsExcludedSkillEffectId(std::uint32_t id) {
   return id == 0x28 || id == 0x2A;
 }