diff --git a/src/main/scripts/unix/cryo-em/cryoem-download-shell-script-url-create b/src/main/scripts/unix/cryo-em/cryoem-download-shell-script-url-create
index 9fd78eae4b38bff830b36f05abb96f124e2336f9..28216d896013f8a1bc4edb8d67b9ee235e2e485a 100755
--- a/src/main/scripts/unix/cryo-em/cryoem-download-shell-script-url-create
+++ b/src/main/scripts/unix/cryo-em/cryoem-download-shell-script-url-create
@@ -140,7 +140,7 @@ do
             exit 1
         fi
     fi
-    COMMAND="${COMMAND} :namespace ${ns}"
+    COMMAND="${COMMAND} :namespace \"${ns}"\"
 done
 COMMAND="${COMMAND} :token < :role -type role ${ROLE} :to now+${EXPIRE_DAYS}day > :verbose ${VERBOSE} :overwrite ${OVERWRITE}"
 COMMAND="${COMMAND} >"
diff --git a/src/main/scripts/unix/namespace-download-shell-script-url-create b/src/main/scripts/unix/namespace-download-shell-script-url-create
index be1a9f637f41b2bea7274265727598a069b9e341..70250d1f43f6019d02603f05be34a6e5c76231c4 100755
--- a/src/main/scripts/unix/namespace-download-shell-script-url-create
+++ b/src/main/scripts/unix/namespace-download-shell-script-url-create
@@ -136,7 +136,7 @@ do
             exit 1
         fi
     fi
-    COMMAND="${COMMAND} :namespace ${ns}"
+    COMMAND="${COMMAND} :namespace \"${ns}"\"
 done
 COMMAND="${COMMAND} :token < :role -type role ${ROLE} :to now+${EXPIRE_DAYS}day > :verbose ${VERBOSE} :overwrite ${OVERWRITE}"
 COMMAND="${COMMAND} >"