diff --git a/compiler/condsyms.nim b/compiler/condsyms.nim
index 085576c6b2..aba6de49db 100644
--- a/compiler/condsyms.nim
+++ b/compiler/condsyms.nim
@@ -166,3 +166,4 @@ proc initDefines*(symbols: StringTableRef) =
   defineSymbol("nimHasWarnStdPrefix")
 
   defineSymbol("nimHasVtables")
+  defineSymbol("nimHasJsNoLambdaLifting")