diff --git a/sys/include/net/nanocoap.h b/sys/include/net/nanocoap.h
index be04a417d506..e144ee1f9080 100644
--- a/sys/include/net/nanocoap.h
+++ b/sys/include/net/nanocoap.h
@@ -974,7 +974,8 @@ size_t coap_opt_put_block_object(uint8_t *buf, uint16_t lastonum,
 static inline size_t coap_opt_put_block1_control(uint8_t *buf, uint16_t lastonum,
                                                  coap_block1_t *block)
 {
-    return coap_opt_put_block_object(buf, lastonum, block, COAP_OPT_BLOCK1);
+    return coap_opt_put_uint(buf, lastonum, COAP_OPT_BLOCK1,
+                             (block->blknum << 4) | block->szx | (block->more ? 0x8 : 0));
 }
 
 /**
@@ -991,8 +992,9 @@ static inline size_t coap_opt_put_block1_control(uint8_t *buf, uint16_t lastonum
 static inline size_t coap_opt_put_block2_control(uint8_t *buf, uint16_t lastonum,
                                                  coap_block1_t *block)
 {
-    block->more = 0;
-    return coap_opt_put_block_object(buf, lastonum, block, COAP_OPT_BLOCK2);
+    /* block.more must be zero, so no need to 'or' it in */
+    return coap_opt_put_uint(buf, lastonum, COAP_OPT_BLOCK2,
+                             (block->blknum << 4) | block->szx);
 }
 
 /**
@@ -1127,7 +1129,12 @@ size_t coap_put_option(uint8_t *buf, uint16_t lastonum, uint16_t onum, uint8_t *
  *
  * @returns     amount of bytes written to @p buf
  */
-size_t coap_put_option_block1(uint8_t *buf, uint16_t lastonum, unsigned blknum, unsigned szx, int more);
+static inline size_t coap_put_option_block1(uint8_t *buf, uint16_t lastonum,
+                                            unsigned blknum, unsigned szx, int more)
+{
+    return coap_opt_put_uint(buf, lastonum, COAP_OPT_BLOCK1,
+                             (blknum << 4) | szx | (more ? 0x8 : 0));
+}
 
 /**
  * @brief   Insert content type option into buffer
@@ -1139,7 +1146,11 @@ size_t coap_put_option_block1(uint8_t *buf, uint16_t lastonum, unsigned blknum,
  *
  * @returns     amount of bytes written to @p buf
  */
-size_t coap_put_option_ct(uint8_t *buf, uint16_t lastonum, uint16_t content_type);
+static inline size_t coap_put_option_ct(uint8_t *buf, uint16_t lastonum,
+                                        uint16_t content_type)
+{
+    return coap_opt_put_uint(buf, lastonum, COAP_OPT_CONTENT_FORMAT, content_type);
+}
 /**@}*/
 
 
diff --git a/sys/net/application_layer/nanocoap/nanocoap.c b/sys/net/application_layer/nanocoap/nanocoap.c
index ab833b147295..c8136a0e1660 100644
--- a/sys/net/application_layer/nanocoap/nanocoap.c
+++ b/sys/net/application_layer/nanocoap/nanocoap.c
@@ -571,20 +571,6 @@ size_t coap_put_option(uint8_t *buf, uint16_t lastonum, uint16_t onum, uint8_t *
     return (size_t)n;
 }
 
-size_t coap_put_option_ct(uint8_t *buf, uint16_t lastonum, uint16_t content_type)
-{
-    if (content_type == 0) {
-        return coap_put_option(buf, lastonum, COAP_OPT_CONTENT_FORMAT, NULL, 0);
-    }
-    else if (content_type <= 255) {
-        uint8_t tmp = content_type;
-        return coap_put_option(buf, lastonum, COAP_OPT_CONTENT_FORMAT, &tmp, sizeof(tmp));
-    }
-    else {
-        return coap_put_option(buf, lastonum, COAP_OPT_CONTENT_FORMAT, (uint8_t *)&content_type, sizeof(content_type));
-    }
-}
-
 static unsigned _size2szx(size_t size)
 {
     unsigned szx = 0;
@@ -612,19 +598,6 @@ static unsigned _slicer_blknum(coap_block_slicer_t *slicer)
     return blknum;
 }
 
-static size_t coap_put_option_block(uint8_t *buf, uint16_t lastonum, unsigned blknum, unsigned szx, int more, uint16_t option)
-{
-    uint32_t blkopt = (blknum << 4) | szx | (more ? 0x8 : 0);
-    size_t olen = _encode_uint(&blkopt);
-
-    return coap_put_option(buf, lastonum, option, (uint8_t *)&blkopt, olen);
-}
-
-size_t coap_put_option_block1(uint8_t *buf, uint16_t lastonum, unsigned blknum, unsigned szx, int more)
-{
-    return coap_put_option_block(buf, lastonum, blknum, szx, more, COAP_OPT_BLOCK1);
-}
-
 int coap_get_block1(coap_pkt_t *pkt, coap_block1_t *block1)
 {
     uint32_t blknum;