X-Git-Url: https://git.hcoop.net/jackhill/mal.git/blobdiff_plain/7730ef754bba3883ba9bfa79a436be246a8a2e47..9870acb645e13387a7d1c2b4ab91b41b96f68015:/matlab/stepA_mal.m

diff --git a/matlab/stepA_mal.m b/matlab/stepA_mal.m
index bb3b09e0..8883ac85 100644
--- a/matlab/stepA_mal.m
+++ b/matlab/stepA_mal.m
@@ -83,6 +83,10 @@ function ret = EVAL(ast, env)
     end
 
     % apply
+    if length(ast) == 0
+        ret = ast;
+        return;
+    end
     ast = macroexpand(ast, env);
     if ~type_utils.list_Q(ast)
         ret = eval_ast(ast, env);