diff --git a/build/i386/build b/build/i386/build
index ee8696c..b7f2e79 100755
--- a/build/i386/build
+++ b/build/i386/build
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -e
+set -eux
 
 REPO="$(realpath "$(dirname "$(realpath "$0")")/../..")"
 
diff --git a/build/riscv64/build b/build/riscv64/build
index 30ece17..2b16fe5 100755
--- a/build/riscv64/build
+++ b/build/riscv64/build
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -e
+set -eux
 
 REPO="$(realpath "$(dirname "$(realpath "$0")")/../..")"
 
diff --git a/build/x86_64/build b/build/x86_64/build
index 7315cee..07e9c14 100755
--- a/build/x86_64/build
+++ b/build/x86_64/build
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -e
+set -eux
 
 REPO="$(realpath "$(dirname "$(realpath "$0")")/../..")"
 
diff --git a/fetch b/fetch
index 7ede8d5..917e5d1 100755
--- a/fetch
+++ b/fetch
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -e
+set -eux
 
 REPO="$(realpath "$(dirname "$(realpath "$0")")")"