diff --git a/components/compiler/lineparser.cpp b/components/compiler/lineparser.cpp
index dc19b9a4b..37641b014 100644
--- a/components/compiler/lineparser.cpp
+++ b/components/compiler/lineparser.cpp
@@ -489,6 +489,13 @@ namespace Compiler
 
     bool LineParser::parseSpecial (int code, const TokenLoc& loc, Scanner& scanner)
     {
+        if (mState==EndState && code==Scanner::S_open)
+        {
+            getErrorHandler().warning ("stray '[' or '(' at the end of the line (ignoring it)",
+                loc);
+            return true;
+        }
+
         if (code==Scanner::S_newline &&
             (mState==EndState || mState==BeginState || mState==PotentialEndState))
             return false;
diff --git a/components/compiler/scanner.cpp b/components/compiler/scanner.cpp
index 203f27e6e..59fae3ccd 100644
--- a/components/compiler/scanner.cpp
+++ b/components/compiler/scanner.cpp
@@ -528,8 +528,7 @@ namespace Compiler
 
     bool Scanner::isWhitespace (char c)
     {
-        return c==' ' || c=='\t'
-            || c=='['; ///< \todo disable this when doing more strict compiling
+        return c==' ' || c=='\t';
     }
 
     // constructor