diff --git a/lib/ansible/modules/crypto/openssl_certificate.py b/lib/ansible/modules/crypto/openssl_certificate.py
index 7d62a8cd49..cb025c286f 100644
--- a/lib/ansible/modules/crypto/openssl_certificate.py
+++ b/lib/ansible/modules/crypto/openssl_certificate.py
@@ -758,7 +758,7 @@ class AcmeCertificate(Certificate):
                 chain = '--chain'
 
             try:
-                crt = module.run_command("%s %s --account-key %s --csr %s"
+                crt = module.run_command("%s %s --account-key %s --csr %s "
                                          "--acme-dir %s" % (acme_tiny_path, chain,
                                                             self.accountkey_path,
                                                             self.csr_path,