diff --git a/sol/proxy.hpp b/sol/proxy.hpp
index 47d9b0cb..4c46804b 100644
--- a/sol/proxy.hpp
+++ b/sol/proxy.hpp
@@ -74,7 +74,7 @@ public:
     }
 
     operator function() const {
-	    return get<function>();
+        return get<function>();
     }
 
     operator std::string() const {