diff --git a/compiler/condsyms.nim b/compiler/condsyms.nim
index 7707c1c0d..3b3d98228 100644
--- a/compiler/condsyms.nim
+++ b/compiler/condsyms.nim
@@ -99,3 +99,4 @@ proc initDefines*(symbols: StringTableRef) =
   defineSymbol("nimToOpenArrayCString")
   defineSymbol("nimHasUsed")
   defineSymbol("nimFixedForwardGeneric")
+  defineSymbol("nimnomagic64")