diff --git a/index.html b/index.html
index 6fa34cc..76a6fda 100644
--- a/index.html
+++ b/index.html
@@ -58,7 +58,7 @@ <h2 class="settings">Settings</h2>
 
             <div class="editor-info">
                 <div>
-                  <span class="infotext">Editor: 1.79 ─ Game: v0.47.1</span>
+                  <span class="infotext">Editor: 1.80 ─ Game: v0.47.1</span>
                   <br/>
                   <span id="warning" class="infotext warning">Cannot access Local Storage. Scripts will not save!</span>
                   <a id="compression" class="infotext warning" target="_blank" style="display:none" href="old_browser.html">
diff --git a/scripts/lexer.lua b/scripts/lexer.lua
index ffb30d1..c2d9e5c 100644
--- a/scripts/lexer.lua
+++ b/scripts/lexer.lua
@@ -118,6 +118,7 @@ end
 
 local function consumeTokensWorker(node)
 	if #node.tokens == 0 then
+		assert(node.func, tokenError(node, "invalid empty parenthesis"));
 		return;
 	elseif #node.tokens == 1 then
 		table.insert(node.args, resolveID(node.tokens[1]));
@@ -353,7 +354,7 @@ function lexer(line, vars)
 					func = assert(FUNCTION[func], tokenError(last, "trying to call a non-function: " .. func));
 				end
 				
-				node = newNode(last and last.pos or token.pos, node, func);
+				node = newNode(func and last.pos or token.pos, node, func);
 			elseif token.type == "next" then
 				assert(node.func, tokenError(token, "unexpected symbol: " .. token.value));
 				consumeTokens(node);