diff --git a/test/check-endianness.sh b/test/check-endianness.sh
new file mode 100644
index 0000000..480fe94
--- /dev/null
+++ b/test/check-endianness.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# A sanity check to prevent human error
+echo "if you see any output, this test has failed"
+
+grep -R setUint *.js test/ | grep -v false
+grep -R getUint *.js test/ | grep -v false