diff --git a/Makefile b/Makefile
index 574911b..7bfee58 100644
--- a/Makefile
+++ b/Makefile
@@ -40,6 +40,8 @@ TOOLPREFIX := $(shell if riscv64-unknown-elf-objdump -i 2>&1 | grep 'elf64-big'
 	then echo 'riscv64-unknown-elf-'; \
 	elif riscv64-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
 	then echo 'riscv64-linux-gnu-'; \
+	elif riscv64-unknown-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
+	then echo 'riscv64-unknown-linux-gnu-'; \
 	else echo "***" 1>&2; \
 	echo "*** Error: Couldn't find a riscv64 version of GCC/binutils." 1>&2; \
 	echo "*** To turn off this error, run 'gmake TOOLPREFIX= ...'." 1>&2; \