diff --git a/src/Core/CAudioManager.cpp b/src/Core/CAudioManager.cpp
index 4421bdc2..520563fa 100644
--- a/src/Core/CAudioManager.cpp
+++ b/src/Core/CAudioManager.cpp
@@ -30,7 +30,7 @@ void CAudioManager::LoadAssets()
     // Create SFX Define ID -> AGSC map
     for (CAudioGroup* group : mAudioGroups)
     {
-        for (uint32 iSnd = 0; iSnd < group->NumSoundDefineIDs(); iSnd++)
+        for (size_t iSnd = 0; iSnd < group->NumSoundDefineIDs(); iSnd++)
         {
             const uint16 DefineID = group->SoundDefineIDByIndex(iSnd);
             ASSERT(mSfxIdMap.find(DefineID) == mSfxIdMap.cend());
diff --git a/src/Core/Resource/CAudioGroup.h b/src/Core/Resource/CAudioGroup.h
index b0143c53..66413970 100644
--- a/src/Core/Resource/CAudioGroup.h
+++ b/src/Core/Resource/CAudioGroup.h
@@ -21,8 +21,8 @@ public:
     // Accessors
     TString GroupName() const                        { return mGroupName; }
     uint32 GroupID() const                           { return mGroupID; }
-    uint32 NumSoundDefineIDs() const                 { return mDefineIDs.size(); }
-    uint16 SoundDefineIDByIndex(uint32 Index) const  { return mDefineIDs[Index]; }
+    size_t NumSoundDefineIDs() const                 { return mDefineIDs.size(); }
+    uint16 SoundDefineIDByIndex(size_t Index) const  { return mDefineIDs[Index]; }
 };
 
 #endif // CAUDIOGROUP