diff --git a/compiler/pragmas.nim b/compiler/pragmas.nim
index 38d17eb62a..dc09d8fc47 100644
--- a/compiler/pragmas.nim
+++ b/compiler/pragmas.nim
@@ -277,6 +277,7 @@ proc processDynLib(c: PContext, n: PNode, sym: PSym) =
 proc processNote(c: PContext, n: PNode) =
   if (n.kind == nkExprColonExpr) and (sonsLen(n) == 2) and
       (n.sons[0].kind == nkBracketExpr) and
+      (n.sons[0].sons.len == 2) and
       (n.sons[0].sons[1].kind == nkIdent) and
       (n.sons[0].sons[0].kind == nkIdent):
       #and (n.sons[1].kind == nkIdent):