diff --git a/src/libsodium/crypto_stream/salsa20/ref/api.h b/src/libsodium/crypto_stream/salsa20/ref/api.h
index 2d8945e6..3616ea71 100644
--- a/src/libsodium/crypto_stream/salsa20/ref/api.h
+++ b/src/libsodium/crypto_stream/salsa20/ref/api.h
@@ -1,8 +1,5 @@
 
 #include "crypto_stream_salsa20.h"
 
-#define crypto_stream_salsa20_implementation_name \
-    crypto_stream_salsa20_ref_implementation_name
-
 #define crypto_stream crypto_stream_salsa20
 #define crypto_stream_xor crypto_stream_salsa20_xor