diff --git a/user/apps/test-backlog/Makefile b/user/apps/test-backlog/Makefile
index 0b31f229..38368f8e 100644
--- a/user/apps/test-backlog/Makefile
+++ b/user/apps/test-backlog/Makefile
@@ -11,6 +11,7 @@ endif
 
 ifeq ($(ARCH), x86_64)
 	export RUST_TARGET=x86_64-unknown-linux-musl
+	export CC=x86_64-linux-musl-gcc
 else ifeq ($(ARCH), riscv64)
 	export RUST_TARGET=riscv64gc-unknown-linux-gnu
 else