diff --git a/base58/contrib/test_vars.sh b/base58/contrib/test_vars.sh
index c456fe0d3..88e2d26e1 100644
--- a/base58/contrib/test_vars.sh
+++ b/base58/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034
 
diff --git a/bitcoin/contrib/test_vars.sh b/bitcoin/contrib/test_vars.sh
index cab77a509..7dbdf4076 100644
--- a/bitcoin/contrib/test_vars.sh
+++ b/bitcoin/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034
 
diff --git a/contrib/crates.sh b/contrib/crates.sh
old mode 100755
new mode 100644
index f74787e47..5a6dd7645
--- a/contrib/crates.sh
+++ b/contrib/crates.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034
 
diff --git a/contrib/test_vars.sh b/contrib/test_vars.sh
index c490c3678..3943aac65 100644
--- a/contrib/test_vars.sh
+++ b/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 #
 # Used by labeler.yaml
 #
diff --git a/hashes/contrib/test_vars.sh b/hashes/contrib/test_vars.sh
index 4020401c5..b74aed8e6 100644
--- a/hashes/contrib/test_vars.sh
+++ b/hashes/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034
 
diff --git a/internals/contrib/test_vars.sh b/internals/contrib/test_vars.sh
index c17317757..ad0a3f27e 100644
--- a/internals/contrib/test_vars.sh
+++ b/internals/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034
 
diff --git a/io/contrib/test_vars.sh b/io/contrib/test_vars.sh
index df392afac..92dc09406 100644
--- a/io/contrib/test_vars.sh
+++ b/io/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034
 
diff --git a/units/contrib/test_vars.sh b/units/contrib/test_vars.sh
index c17317757..ad0a3f27e 100644
--- a/units/contrib/test_vars.sh
+++ b/units/contrib/test_vars.sh
@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
 # disable verify unused vars, despite the fact that they are used when sourced
 # shellcheck disable=SC2034