diff --git a/cheat/cheatsheets/openssl b/cheat/cheatsheets/openssl
index 46b14ed..9254c1c 100644
--- a/cheat/cheatsheets/openssl
+++ b/cheat/cheatsheets/openssl
@@ -21,4 +21,4 @@ awk '/-----BEGIN/,/END CERTIFICATE-----/' | \
 openssl x509 -noout -enddate
 
 # Generate Diffie-Hellman parameters:
-openssl dhparamm -outform PEM -out dhparams.pem 2048
+openssl dhparam -outform PEM -out dhparams.pem 2048