diff --git a/Makefile b/Makefile
index 9fbeb3d..c2b7b7e 100755
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,8 @@ include $(BOLOS_SDK)/Makefile.defines
 
 DEFINES_LIB = USE_LIB_ETHEREUM
 APP_LOAD_PARAMS= --curve secp256k1 $(COMMON_LOAD_PARAMS)
+# Allow the app to use path 45 for multi-sig (see BIP45).
+APP_LOAD_PARAMS += --path "45'"
 
 APPVERSION_M=1
 APPVERSION_N=1