diff --git a/tests/c/build.sh b/tests/c/build.sh
index 01188f5f..3372ffbb 100755
--- a/tests/c/build.sh
+++ b/tests/c/build.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -ueo pipefail
 
 CC=${CC:=clang}
 
diff --git a/tests/rust/build.sh b/tests/rust/build.sh
index 40a0003f..3db1e359 100755
--- a/tests/rust/build.sh
+++ b/tests/rust/build.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -ueo pipefail
 
 cargo build --target=wasm32-wasi