diff --git a/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c b/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c
index a33a4187..64d15819 100644
--- a/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c
+++ b/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c
@@ -1372,7 +1372,7 @@ slide(signed char *r, const unsigned char *a)
                     ribs = r[i + b] << b;
                     cmp = r[i] + ribs;
                     if (cmp <= 15) {
-                        r[i] = cmp; 
+                        r[i] = cmp;
                         r[i + b] = 0;
                     } else {
                         cmp = r[i] - ribs;