1 files changed, 1 insertions, 1 deletions
diff --git a/arc4.cpp b/arc4.cpp
index 9a3e38c5..3f3b588c 100644
--- a/arc4.cpp
+++ b/arc4.cpp
@@ -13,7 +13,7 @@
 NAMESPACE_BEGIN(CryptoPP)
 namespace Weak1 {
 
-#if CRYPTOPP_DEBUG && !defined(CRYPTOPP_DOXYGEN_PROCESSING)
+#if defined(CRYPTOPP_DEBUG) && !defined(CRYPTOPP_DOXYGEN_PROCESSING)
 void ARC4_TestInstantiations()
 {
 	ARC4 x;