diff --git a/tests/bonsai/dj.mk b/tests/bonsai/dj.mk
index bf8adf3..2b4ef6b 100755
--- a/tests/bonsai/dj.mk
+++ b/tests/bonsai/dj.mk
@@ -19,7 +19,7 @@ dj_tests: dj_help dj_full dj_null # dj_skip_stdin
 dj_full: $(BIN)/dj /dev/full
 	case "$$(uname)" in \
 	Linux) \
-		$(BIN)/dj -Hi /dev/zero -o /dev/full 2>&1 \
+		! $(BIN)/dj -Hi /dev/zero -o /dev/full 2>&1 \
 			| tee /dev/stderr \
 			| xargs -I out test '1+0 > 0+0; 1024 > 0' = out \
 		;; \
diff --git a/tests/bonsai/rpn.mk b/tests/bonsai/rpn.mk
index 3619692..6fecab9 100755
--- a/tests/bonsai/rpn.mk
+++ b/tests/bonsai/rpn.mk
@@ -30,7 +30,7 @@ rpn_mul: $(BIN)/rpn
 .PHONY: rpn_div
 rpn_div: $(BIN)/rpn
 	test "$$($(BIN)/rpn 12 5 /)" = 2.4
-	test "$$($(BIN)/rpn 3 0 /)" -eq inf
+	test "$$($(BIN)/rpn 3 0 /)" = inf
 
 .PHONY: rpn_mod
 rpn_mod: $(BIN)/rpn