diff --git a/lib/system/excpt.nim b/lib/system/excpt.nim
index 2595a045b..ef9a6deaf 100644
--- a/lib/system/excpt.nim
+++ b/lib/system/excpt.nim
@@ -531,12 +531,12 @@ when not defined(noSignalHandler) and not defined(useNimRtl):
     when defined(memtracker):
       logPendingOps()
     when hasSomeStackTrace:
-      when not defined(gcDestructors): GC_disable()
+      when not usesDestructors: GC_disable()
       var buf = newStringOfCap(2000)
       rawWriteStackTrace(buf)
       processSignal(sign, buf.add) # nice hu? currying a la Nim :-)
       showErrorMessage(buf)
-      when not defined(gcDestructors): GC_enable()
+      when not usesDestructors: GC_enable()
     else:
       var msg: cstring
       template asgn(y) =