diff --git a/compiler/semtypes.nim b/compiler/semtypes.nim
index fc59b6f91642..503e2fde898a 100644
--- a/compiler/semtypes.nim
+++ b/compiler/semtypes.nim
@@ -296,9 +296,8 @@ proc semRangeAux(c: PContext, n: PNode, prev: PType): PType =
     else:
       result.n.add semConstExpr(c, range[i])
 
-  if (result.n[0].kind in {nkFloatLit..nkFloat64Lit} and result.n[0].floatVal.isNaN) or
-      (result.n[1].kind in {nkFloatLit..nkFloat64Lit} and result.n[1].floatVal.isNaN):
-    localError(c.config, n.info, "NaN is not a valid start or end for a range")
+    if result.n[i].kind in {nkFloatLit..nkFloat64Lit} and result.n[i].floatVal.isNaN:
+      localError(c.config, n.info, "NaN is not a valid range " & (if i == 0: "start" else: "end"))
 
   if weakLeValue(result.n[0], result.n[1]) == impNo:
     localError(c.config, n.info, "range is empty")