diff --git a/unix/Makefile b/unix/Makefile
index 96a8df21b6..566c7a372b 100644
--- a/unix/Makefile
+++ b/unix/Makefile
@@ -85,12 +85,6 @@ INC +=  -I../lib/mp-readline
 CFLAGS_MOD += -DMICROPY_USE_READLINE=1
 LIB_SRC_C_EXTRA += mp-readline/readline.c
 endif
-ifeq ($(MICROPY_USE_READLINE),2)
-CFLAGS_MOD += -DMICROPY_USE_READLINE=2
-LDFLAGS_MOD += -lreadline
-# the following is needed for BSD
-#LDFLAGS_MOD += -ltermcap
-endif
 ifeq ($(MICROPY_PY_TIME),1)
 CFLAGS_MOD += -DMICROPY_PY_TIME=1
 SRC_MOD += modtime.c
diff --git a/unix/mpconfigport.mk b/unix/mpconfigport.mk
index ba0341f20e..ed88143ac5 100644
--- a/unix/mpconfigport.mk
+++ b/unix/mpconfigport.mk
@@ -6,7 +6,6 @@ MICROPY_FORCE_32BIT = 0
 # This variable can take the following values:
 #  0 - no readline, just simple input
 #  1 - use MicroPython version of readline
-#  2 - use GNU readline (causes binary to be licensed under GPL)
 MICROPY_USE_READLINE = 1
 
 # Whether to enable FatFs VFS