diff --git a/apps/ocsp.c b/apps/ocsp.c
index 97bde9ec7f..b1a86dcf5b 100644
--- a/apps/ocsp.c
+++ b/apps/ocsp.c
@@ -135,7 +135,7 @@ const OPTIONS ocsp_options[] = {
     {"no_certs", OPT_NO_CERTS, '-',
      "Don't include any certificates in signed request"},
     {"badsig", OPT_BADSIG, '-',
-        "Corrupt last byte of loaded OSCP response signature (for test)"},
+        "Corrupt last byte of loaded OCSP response signature (for test)"},
     {"CA", OPT_CA, '<', "CA certificate"},
     {"nmin", OPT_NMIN, 'p', "Number of minutes before next update"},
     {"nrequest", OPT_REQUEST, 'p',