diff --git a/drivers/net/fm/fm.c b/drivers/net/fm/fm.c
index 49c74c278a..8d70586937 100644
--- a/drivers/net/fm/fm.c
+++ b/drivers/net/fm/fm.c
@@ -362,7 +362,6 @@ static void fm_init_qmi(struct fm_qmi_common *qmi)
 int fm_init_common(int index, struct ccsr_fman *reg)
 {
 	int rc;
-	char env_addr[32];
 #if defined(CONFIG_SYS_QE_FMAN_FW_IN_NOR)
 	void *addr = (void *)CONFIG_SYS_QE_FMAN_FW_ADDR;
 #elif defined(CONFIG_SYS_QE_FMAN_FW_IN_NAND)
@@ -416,8 +415,7 @@ int fm_init_common(int index, struct ccsr_fman *reg)
 	rc = fman_upload_firmware(index, &reg->fm_imem, addr);
 	if (rc)
 		return rc;
-	sprintf(env_addr, "0x%lx", (long unsigned int)addr);
-	setenv("fman_ucode", env_addr);
+	setenv_addr("fman_ucode", addr);
 
 	fm_init_muram(index, &reg->muram);
 	fm_init_qmi(&reg->fm_qmi_common);
diff --git a/net/net.c b/net/net.c
index a40cde1e94..df94789de9 100644
--- a/net/net.c
+++ b/net/net.c
@@ -528,15 +528,11 @@ restart:
 		case NETLOOP_SUCCESS:
 			net_cleanup_loop();
 			if (NetBootFileXferSize > 0) {
-				char buf[20];
 				printf("Bytes transferred = %ld (%lx hex)\n",
 					NetBootFileXferSize,
 					NetBootFileXferSize);
-				sprintf(buf, "%lX", NetBootFileXferSize);
-				setenv("filesize", buf);
-
-				sprintf(buf, "%lX", (unsigned long)load_addr);
-				setenv("fileaddr", buf);
+				setenv_hex("filesize", NetBootFileXferSize);
+				setenv_hex("fileaddr", load_addr);
 			}
 			if (protocol != NETCONS)
 				eth_halt();