diff --git a/lib/fetch/http.c b/lib/fetch/http.c
index 02b97a51..0165de32 100644
--- a/lib/fetch/http.c
+++ b/lib/fetch/http.c
@@ -602,13 +602,12 @@ http_base64(const char *src)
 	    "0123456789+/";
 	char *str, *dst;
 	size_t l;
-	int t, r;
+	int t;
 
 	l = strlen(src);
 	if ((str = malloc(((l + 2) / 3) * 4 + 1)) == NULL)
 		return (NULL);
 	dst = str;
-	r = 0;
 
 	while (l >= 3) {
 		t = (src[0] << 16) | (src[1] << 8) | src[2];
@@ -617,7 +616,7 @@ http_base64(const char *src)
 		dst[2] = base64[(t >> 6) & 0x3f];
 		dst[3] = base64[(t >> 0) & 0x3f];
 		src += 3; l -= 3;
-		dst += 4; r += 4;
+		dst += 4;
 	}
 
 	switch (l) {
@@ -628,7 +627,6 @@ http_base64(const char *src)
 		dst[2] = base64[(t >> 6) & 0x3f];
 		dst[3] = '=';
 		dst += 4;
-		r += 4;
 		break;
 	case 1:
 		t = src[0] << 16;
@@ -636,7 +634,6 @@ http_base64(const char *src)
 		dst[1] = base64[(t >> 12) & 0x3f];
 		dst[2] = dst[3] = '=';
 		dst += 4;
-		r += 4;
 		break;
 	case 0:
 		break;