diff --git a/tests/bonsai/dj.mk b/tests/bonsai/dj.mk
index 402abd6..bf8adf3 100755
--- a/tests/bonsai/dj.mk
+++ b/tests/bonsai/dj.mk
@@ -20,7 +20,7 @@ dj_full: $(BIN)/dj /dev/full
 	case "$$(uname)" in \
 	Linux) \
 		$(BIN)/dj -Hi /dev/zero -o /dev/full 2>&1 \
-			| tee /dev/tty \
+			| tee /dev/stderr \
 			| xargs -I out test '1+0 > 0+0; 1024 > 0' = out \
 		;; \
 	esac
@@ -33,7 +33,7 @@ dj_help: $(BIN)/dj
 # Read nothing from /dev/null, write nothing to /dev/null.
 dj_null: $(BIN)/dj /dev/null
 	$(BIN)/dj -Hi /dev/null -o /dev/null 2>&1 \
-		| tee /dev/tty \
+		| tee /dev/stderr \
 		| xargs -I out test '0+0 > 0+0; 0 > 0' = out
 
 # This test currently fails. This is probably due to dj(1) being stale relative
@@ -44,5 +44,5 @@ dj_null: $(BIN)/dj /dev/null
 # 	# Pipe 1024B of '\0' into dj(1); skip the first 24B; expect 1000B written.
 # 	dd count=1 bs=1024 </dev/zero 2>/dev/null \
 # 		| $(BIN)/dj -H -s 24 -o /dev/null 2>&1 \
-# 		| tee /dev/tty \
+# 		| tee /dev/stderr \
 # 		| xargs -I out test '1+0 > 1+0; 1024 > 1000' = out