diff --git a/tests/run-make/split-debuginfo/Makefile b/tests/run-make/split-debuginfo/Makefile
index cb2439093b6..5f463ffe8cd 100644
--- a/tests/run-make/split-debuginfo/Makefile
+++ b/tests/run-make/split-debuginfo/Makefile
@@ -1,4 +1,6 @@
 # ignore-cross-compile
+# ignore-riscv64 On this platform only `-Csplit-debuginfo=off` is supported, see #120518
+
 include ../tools.mk
 
 all: off packed unpacked