diff --git a/src/KingSystem/ActorSystem/actInfoData.h b/src/KingSystem/ActorSystem/actInfoData.h
index c910c673..7295ad10 100644
--- a/src/KingSystem/ActorSystem/actInfoData.h
+++ b/src/KingSystem/ActorSystem/actInfoData.h
@@ -127,7 +127,8 @@ public:
     bool getVariationMatAnim(const char* actor, const char** anim, f32* frame) const;
     bool getName(al::ByamlIter* iter, const char** name, s32 idx) const;
 
-    const char* getString(const char* actor, const char* key, const sead::SafeString& default_,
+    const char* getString(const char* actor, const char* key,
+                          const sead::SafeString& default_ = sead::SafeString::cEmptyString,
                           bool x = true) const;
     s32 getInt(const char* actor, const char* key, s32 default_ = 0, bool x = true) const;
     f32 getFloat(const char* actor, const char* key, f32 default_ = 0, bool x = true) const;
@@ -139,8 +140,9 @@ public:
                              bool x = true);
     static bool getBoolByKey(const al::ByamlIter& iter, const char* key, bool default_ = false,
                              bool x = true);
-    static const char* getStringByKey(const al::ByamlIter& iter, const char* key,
-                                      const sead::SafeString& default_);
+    static const char*
+    getStringByKey(const al::ByamlIter& iter, const char* key,
+                   const sead::SafeString& default_ = sead::SafeString::cEmptyString);
 
 private:
     struct DebugEntry {