diff --git a/doc/api/crypto.md b/doc/api/crypto.md
index 8d6c5a94f90057..864b357d452dc7 100644
--- a/doc/api/crypto.md
+++ b/doc/api/crypto.md
@@ -2892,7 +2892,7 @@ is currently in use. Setting to true requires a FIPS build of Node.js.
 This property is deprecated. Please use `crypto.setFips()` and
 `crypto.getFips()` instead.
 
-### `crypto.checkPrime(candidate[, options[, callback]])`
+### `crypto.checkPrime(candidate[, options], callback)`
 
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