diff --git a/libtransmission/rc4.c b/libtransmission/rc4.c
deleted file mode 100644
index 040e6f93d..000000000
--- a/libtransmission/rc4.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include "rc4.h"
-
-struct tr_rc4_s
-{
-    uint8_t x;      
-    uint8_t y;
-    uint8_t state[256];
-};
-
-static void
-swapByte( uint8_t* a, uint8_t* b )
-{
-    const uint8_t tmp = *a;
-    *a = *b;
-    *b = tmp;
-}
-
-tr_rc4_t *
-tr_rc4New ( const uint8_t * key,
-            int             keylen )
-{
-    uint8_t index1 = 0;
-    uint8_t index2 = 0;
-    uint8_t * state;
-    int i;
-    tr_rc4_t * ret = calloc( 1, sizeof(tr_rc4_t) );
-
-    /* initialize the state array */
-    state = ret->state;
-    for( i=0; i<256; ++i )
-        state[i] = (uint8_t)i;
-
-    ret->x = 0;
-    ret->y = 0;
-    for( i=0; i<256; ++i )
-    {
-        index2 = (key[index1] + state[i] + index2) % 256;
-        swapByte (state+i, state+index2);
-        index1 = (index1 + 1) % keylen;
-    }
-
-    return ret;
-}
-
-void
-tr_rc4Free( tr_rc4_t * rc4 )
-{
-    free( rc4 );
-}
-
-void
-tr_rc4Step( tr_rc4_t     * key,
-            uint8_t      * buf,
-            int            buflen )
-{
-    uint8_t x = key->x;
-    uint8_t y = key->y;
-    uint8_t * state = key->state;
-    uint8_t xorIndex;
-    int i;
-
-    for( i=0; i<buflen; ++i )
-    {
-        x = (x + 1) % 256;
-        y = (state[x] + y) % 256;
-        swapByte( state+x, state+y );
-        xorIndex = (state[x] + state[y]) % 256;
-        buf[i] ^= state[xorIndex];
-    }
-
-    key->x = x;
-    key->y = y;
-}
diff --git a/libtransmission/rc4.h b/libtransmission/rc4.h
deleted file mode 100644
index 18b8b9c49..000000000
--- a/libtransmission/rc4.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef TR_RC4_H
-#define TR_RC4_H
-
-typedef struct tr_rc4_s tr_rc4_t;
-
-tr_rc4_t *  tr_rc4New     ( const uint8_t   * key,
-                            int               keylen );
-
-void        tr_rc4Step    ( tr_rc4_t        * rc4,
-                            uint8_t         * buf,
-                            int               buflen );
-
-void        tr_rc4Free    ( tr_rc4_t        * rc4 );
-
-#endif
diff --git a/mk/lib.mk b/mk/lib.mk
index 89d03e209..a7ddbeea8 100644
--- a/mk/lib.mk
+++ b/mk/lib.mk
@@ -5,7 +5,7 @@ include ../mk/common.mk
 
 SRCS = bencode.c choking.c clients.c completion.c fastresume.c fdlimit.c \
        http.c inout.c ipcparse.c makemeta.c metainfo.c natpmp.c net.c \
-       peer.c platform.c ratecontrol.c rc4.c sha1.c shared.c strlcat.c \
+       peer.c platform.c ratecontrol.c sha1.c shared.c strlcat.c \
        strlcpy.c torrent.c tracker.c transmission.c upnp.c utils.c xml.c 
 
 OBJS = $(SRCS:%.c=%.o)