diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index dd0ee7d..9d7bf0c 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -604,22 +604,29 @@ ${SPCD_PROJECT_ROOT}$(basename "${GITHUB_SERVER_URL}")"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}" | "${SPCD_OS_FEDORA}" | "${SPCD_OS_ROCKY}")
         SPCD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
-        SPCD_CMD_CA="update-ca-trust"
         ;;
-    "${SPCD_OS_ALPINE}")
+    "${SPCD_OS_ALPINE}" | "${SPCD_OS_DEBIAN}" | "${SPCD_OS_UBUNTU}")
         SPCD_CA_ROOT="/usr/local/share/ca-certificates"
-        SPCD_CMD_CA="update-ca-certificates"
         ;;
     "${SPCD_OS_ARCH}")
         SPCD_CA_ROOT="/etc/ca-certificates/trust-source/anchors"
-        SPCD_CMD_CA="update-ca-trust"
-        ;;
-    "${SPCD_OS_DEBIAN}" | "${SPCD_OS_UBUNTU}")
-        SPCD_CA_ROOT="/usr/local/share/ca-certificates"
-        SPCD_CMD_CA="update-ca-certificates"
         ;;
     "${SPCD_OS_OPENSUSE}")
         SPCD_CA_ROOT="/etc/pki/trust/anchors"
+        ;;
+    *) ;;
+    esac
+    case "${SPCD_OS_ID}" in
+    "${SPCD_OS_ARCH}" | \
+        "${SPCD_OS_ALMA}" | \
+        "${SPCD_OS_FEDORA}" | \
+        "${SPCD_OS_ROCKY}")
+        SPCD_CMD_CA="update-ca-trust"
+        ;;
+    "${SPCD_OS_ALPINE}" | \
+        "${SPCD_OS_DEBIAN}" | \
+        "${SPCD_OS_OPENSUSE}" | \
+        "${SPCD_OS_UBUNTU}")
         SPCD_CMD_CA="update-ca-certificates"
         ;;
     *) ;;