diff --git a/src/jvm/clojure/lang/Compiler.java b/src/jvm/clojure/lang/Compiler.java
index 21615f4..48ef722 100644
--- a/src/jvm/clojure/lang/Compiler.java
+++ b/src/jvm/clojure/lang/Compiler.java
@@ -1861,6 +1861,11 @@ static class ConstantExpr extends LiteralExpr{
        public Expr parse(C context, Object form){
            Object v = RT.second(form);

+           if ( RT.count(form) > 2 ) {
+               throw new IllegalArgumentException
+                   ("Must provide at most one argument to `quote'.");
+           }
+
            if(v == null)
                return NIL_EXPR;
            else if(v == Boolean.TRUE)