diff --git a/src/mrsqlite3.cpp b/src/mrsqlite3.cpp
index c25ed99c..6a8f96c7 100644
--- a/src/mrsqlite3.cpp
+++ b/src/mrsqlite3.cpp
@@ -124,7 +124,7 @@ char* MrSqlite3::GetDbFile()
 		return NULL;
 	}
 
-	return strdup(m_dbfile);
+	return strdup(m_dbfile); // the caller should free() the returned string
 }