diff --git a/lib/system/repr.nim b/lib/system/repr.nim
index 43ac0088f1..ec02f5e089 100755
--- a/lib/system/repr.nim
+++ b/lib/system/repr.nim
@@ -9,7 +9,8 @@
 
 # The generic ``repr`` procedure. It is an invaluable debugging tool.
 
-proc reprAny(p: pointer, typ: PNimType): string {.compilerRtl.}
+when not defined(useNimRtl):
+  proc reprAny(p: pointer, typ: PNimType): string {.compilerRtl.}
 
 proc reprInt(x: int64): string {.compilerproc.} = return $x
 proc reprFloat(x: float): string {.compilerproc.} = return $x