diff --git a/src/ai/earth.h b/src/ai/earth.h
new file mode 100644
index 000000000..3ea8a5721
--- /dev/null
+++ b/src/ai/earth.h
@@ -0,0 +1,13 @@
+/*
+ * earth.h
+ *
+ *  Created on: 01.08.2009
+ *      Author: gerstrong
+ */
+
+#ifndef EARTH_H_
+#define EARTH_H_
+
+void delete_object(int o);
+
+#endif /* EARTH_H_ */
diff --git a/src/ai/fireball.h b/src/ai/fireball.h
new file mode 100644
index 000000000..2e49f938f
--- /dev/null
+++ b/src/ai/fireball.h
@@ -0,0 +1,13 @@
+/*
+ * fireball.h
+ *
+ *  Created on: 01.08.2009
+ *      Author: gerstrong
+ */
+
+#ifndef FIREBALL_H_
+#define FIREBALL_H_
+
+void delete_object(int o);
+
+#endif /* FIREBALL_H_ */