Corrected spelling mistake
diff --git a/examples/certgen.py b/examples/certgen.py
index 53c19b1..da0624f 100644
--- a/examples/certgen.py
+++ b/examples/certgen.py
@@ -56,7 +56,7 @@
     """
     Generate a certificate given a certificate request.
 
-    Arguments: req        - Certificate reqeust to use
+    Arguments: req        - Certificate request to use
                issuerCert - The certificate of the issuer
                issuerKey  - The private key of the issuer
                serial     - Serial number for the certificate