diff --git a/rootfs/app/acme-refresh-cert.sh b/rootfs/app/acme-refresh-cert.sh
index 8297404..411339f 100755
--- a/rootfs/app/acme-refresh-cert.sh
+++ b/rootfs/app/acme-refresh-cert.sh
@@ -11,7 +11,7 @@ TLS_CHAIN=/acme/cert/chain.pem
 [ ! -f "$TLS_CHAIN" ] && exit 1
 
 ############ CHECK CERT KEY ALGO
-ALGO=$(openssl x509 -in "$TLS_CERT"-text | sed -n 's/\ *Public Key Algorithm: //p' | tr '\n')
+ALGO=$(openssl x509 -in "$TLS_CERT" -text | sed -n 's/\ *Public Key Algorithm: //p' | tr '\n')
 
 ############ UPDATE cert config if needed
 if [ "$ALGO" = "id-ecPublicKey" ] ; then
diff --git a/rootfs/app/refresh-cert.sh b/rootfs/app/refresh-cert.sh
index 8297404..411339f 100755
--- a/rootfs/app/refresh-cert.sh
+++ b/rootfs/app/refresh-cert.sh
@@ -11,7 +11,7 @@ TLS_CHAIN=/acme/cert/chain.pem
 [ ! -f "$TLS_CHAIN" ] && exit 1
 
 ############ CHECK CERT KEY ALGO
-ALGO=$(openssl x509 -in "$TLS_CERT"-text | sed -n 's/\ *Public Key Algorithm: //p' | tr '\n')
+ALGO=$(openssl x509 -in "$TLS_CERT" -text | sed -n 's/\ *Public Key Algorithm: //p' | tr '\n')
 
 ############ UPDATE cert config if needed
 if [ "$ALGO" = "id-ecPublicKey" ] ; then