diff --git a/src/aeso_ast_infer_types.erl b/src/aeso_ast_infer_types.erl
index a1d2bdc..bc049cf 100644
--- a/src/aeso_ast_infer_types.erl
+++ b/src/aeso_ast_infer_types.erl
@@ -561,7 +561,7 @@ global_env() ->
                      {"caller",    Address},
                      {"value",     Int},
                      {"gas_price", Int},
-                     {"fee", Int},
+                     {"fee",       Int},
                      {"gas_left",  Fun([], Int)}])
         },