diff --git a/libs/encryption/salsa20.cpp b/libs/encryption/salsa20.cpp
index e7254d6..a11bcd0 100644
--- a/libs/encryption/salsa20.cpp
+++ b/libs/encryption/salsa20.cpp
@@ -59,7 +59,7 @@ void ECRYPT_encrypt_bytes(ECRYPT_ctx *x,const u8 *m,u8 *c,u32 bytes)
     u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15;
     u8 *ctarget;
     u8 tmp[64];
-    int i;
+    u32 i;
 
     if (!bytes) return;
 
@@ -82,7 +82,10 @@ void ECRYPT_encrypt_bytes(ECRYPT_ctx *x,const u8 *m,u8 *c,u32 bytes)
 
     for (;;) {
         if (bytes < 64) {
-            for (i = 0;i < bytes;++i) tmp[i] = m[i];
+            for (i = 0; i < bytes; ++i)
+            {
+                tmp[i] = m[i];
+            }
             m = tmp;
             ctarget = c;
             c = tmp;