diff --git i/cmd/hare/build.ha w/cmd/hare/build.ha
index 44b6484f..ebecfd8b 100644
--- i/cmd/hare/build.ha
+++ w/cmd/hare/build.ha
@@ -144,8 +144,8 @@ fn build(name: str, cmd: *getopt::command) (void | error) = {
 	set_arch_tags(&ctx.ctx.tags, arch);
 
 	ctx.cmds = ["",
-		os::tryenv("HAREC", "harec"),
-		os::tryenv("QBE", "qbe"),
+		os::tryenv("HAREC", "@harec_bin@"),
+		os::tryenv("QBE", "@qbe_bin@"),
 		os::tryenv("AS", arch.as_cmd),
 		os::tryenv("LD", arch.ld_cmd),
 	];