diff --git a/Makefile b/Makefile
index 7e2856d..631c5b9 100644
--- a/Makefile
+++ b/Makefile
@@ -46,11 +46,13 @@ ifeq ($(CHAIN),)
 CHAIN=ethereum
 endif
 
+SUPPORTED_CHAINS=$(shell find makefile_conf/chain/ -type f -name '*.mk'| sed 's/.*\/\(.*\).mk/\1/g' | sort)
+
 # Check if chain is available
 ifeq ($(shell test -s ./makefile_conf/chain/$(CHAIN).mk && echo -n yes), yes)
 include ./makefile_conf/chain/$(CHAIN).mk
 else
-$(error Unsupported CHAIN - use ethereum, ropsten, goerli, moonriver, ethereum_classic, expanse, poa, artis_sigma1, artis_tau1, rsk, rsk_testnet, ubiq, wanchain, kusd, musicoin, pirl, akroma, atheios, callisto, ethersocial, ellaism, ether1, ethergem, gochain, mix, reosc, hpb, tomochain, tobalaba, dexon, volta, ewc, webchain, thundercore, bsc, songbird, polygon, shyft)
+$(error Unsupported CHAIN - use $(SUPPORTED_CHAINS))
 endif
 
 #########
@@ -233,4 +235,4 @@ include $(BOLOS_SDK)/Makefile.rules
 dep/%.d: %.c Makefile
 
 listvariants:
-	@echo VARIANTS CHAIN ethereum ropsten goerli moonriver ethereum_classic expanse poa rsk rsk_testnet ubiq wanchain pirl akroma atheios callisto ethersocial ether1 gochain musicoin ethergem mix ellaism reosc hpb tomochain dexon volta ewc thundercore bsc songbird polygon shyft
+	@echo VARIANTS CHAIN $(SUPPORTED_CHAINS)