diff --git a/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh b/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh
index 3b10dc9e6d3d..b9bca7f94031 100644
--- a/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh
+++ b/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh
@@ -54,9 +54,11 @@ valkey_conf_set() {
     value="${value//\\/\\\\}"
     value="${value//&/\\&}"
     value="${value//\?/\\?}"
-    # 2. \000-\037 strips all ASCII control characters (0-31)
+    # 2. \001-\037 strips all ASCII control characters (1-31)
+    #    NUL is excluded: Bash cannot store it, so including it turns the range
+    #    into a literal '-' that would strip dashes from the value
     # 3. \177 strips DEL (delete) character (127)
-    value="${value//[$'\000'-$'\037'$'\177']}"
+    value="${value//[$'\001'-$'\037'$'\177']}"
     # 4. If the value is empty, set it to an empty string
     [[ "$value" = "" ]] && value="\"$value\""