diff --git a/packages/albatross.1.3.0~pre/opam b/packages/albatross.1.3.0~pre/opam
index e93d4ee..029bf3a 100644
--- a/packages/albatross.1.3.0~pre/opam
+++ b/packages/albatross.1.3.0~pre/opam
@@ -44,8 +44,8 @@ build: [
   ["dune" "build" "-p" name "-j" jobs]
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
-  ["sh" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
-  ["sh" "packaging/debian/create_package.sh"] {os-family = "debian"}
+  ["sh" "-ex" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
+  ["sh" "-ex" "packaging/debian/create_package.sh"] {os-family = "debian"}
 ]
 synopsis: "Albatross - orchestrate and manage MirageOS unikernels with Solo5"
 description: """
diff --git a/packages/builder-web.0.0.1~dev/opam b/packages/builder-web.0.0.1~dev/opam
index 32e8d16..59fb522 100644
--- a/packages/builder-web.0.0.1~dev/opam
+++ b/packages/builder-web.0.0.1~dev/opam
@@ -10,8 +10,8 @@ build: [
   ["dune" "subst"] {dev}
   ["dune" "build" "-p" name "-j" jobs]
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
-  ["sh" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
-  ["sh" "packaging/debian/create_package.sh"] {os-family = "debian"}
+  ["sh" "-ex" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
+  ["sh" "-ex" "packaging/debian/create_package.sh"] {os-family = "debian"}
 ]
 
 depends: [
diff --git a/packages/builder.0.0.1~dev/opam b/packages/builder.0.0.1~dev/opam
index 06783d2..12738ca 100644
--- a/packages/builder.0.0.1~dev/opam
+++ b/packages/builder.0.0.1~dev/opam
@@ -28,8 +28,8 @@ depends: [
 build: [
   ["dune" "subst"] {dev}
   ["dune" "build" "-p" name "-j" jobs]
-  ["sh" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
-  ["sh" "packaging/debian/create_package.sh"] {os-family = "debian"}
+  ["sh" "-ex" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
+  ["sh" "-ex" "packaging/debian/create_package.sh"] {os-family = "debian"}
 ]
 
 synopsis: "Scheduling and executing shell jobs"
diff --git a/packages/solo5-bindings-hvt.0.6.8~packaging/opam b/packages/solo5-bindings-hvt.0.6.8~packaging/opam
index 21e4933..e3eea99 100644
--- a/packages/solo5-bindings-hvt.0.6.8~packaging/opam
+++ b/packages/solo5-bindings-hvt.0.6.8~packaging/opam
@@ -12,8 +12,8 @@ dev-repo: "git+https://github.com/solo5/solo5.git"
 build: [
   ["./configure.sh"]
   [make "V=1" "CONFIG_SPT=" "CONFIG_VIRTIO=" "CONFIG_MUEN=" "CONFIG_GENODE=" "CONFIG_XEN="]
-  ["sh" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
-  ["sh" "packaging/debian/create_package.sh"] {os-family = "debian"}
+  ["sh" "-ex" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
+  ["sh" "-ex" "packaging/debian/create_package.sh"] {os-family = "debian"}
 ]
 depends: [
   "conf-pkg-config"