diff --git a/pkg/lua/Makefile.dep b/pkg/lua/Makefile.dep
index 860816c4e0..848218175b 100644
--- a/pkg/lua/Makefile.dep
+++ b/pkg/lua/Makefile.dep
@@ -7,3 +7,8 @@ FEATURES_REQUIRED += arch_32bit
 
 # LUA is not supported on MIPS because of missing stdin over UART
 FEATURES_BLACKLIST += arch_mips32r2
+
+# LUA is not supported on RISCV because of build issues with the toolchain
+# (undefined reference to _times, _unlink and _link functions in provided
+# newlib nano).
+FEATURES_BLACKLIST += arch_riscv