diff --git a/lib/pure/bitops.nim b/lib/pure/bitops.nim
index 377602e75d..4ef190c1b5 100644
--- a/lib/pure/bitops.nim
+++ b/lib/pure/bitops.nim
@@ -413,7 +413,6 @@ func fastlog2Nim(x: uint64): int {.inline.} =
 
 import system/countbits_impl
 
-const arch64 = sizeof(int) == 8
 const useBuiltinsRotate = (defined(amd64) or defined(i386)) and
                           (defined(gcc) or defined(clang) or defined(vcc) or
                            (defined(icl) and not defined(cpp))) and useBuiltins
diff --git a/lib/system/countbits_impl.nim b/lib/system/countbits_impl.nim
index e0338f8f91..184f97bd47 100644
--- a/lib/system/countbits_impl.nim
+++ b/lib/system/countbits_impl.nim
@@ -18,7 +18,7 @@ const useGCC_builtins* = (defined(gcc) or defined(llvm_gcc) or
                          defined(clang)) and useBuiltins
 const useICC_builtins* = defined(icc) and useBuiltins
 const useVCC_builtins* = defined(vcc) and useBuiltins
-const arch64 = sizeof(int) == 8
+const arch64* = sizeof(int) == 8
 
 template countBitsImpl(n: uint32): int =
   # generic formula is from: https://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel