1 files changed, 1 insertions, 2 deletions
diff --git a/src/key.h b/src/key.h
index 1f1d142887..104a8f5c72 100644
--- a/src/key.h
+++ b/src/key.h
@@ -124,8 +124,7 @@ public:
 
     /**
      * Create a DER-serialized signature.
-     * The test_case parameter tweaks the deterministic nonce, and is only for
-     * testing. It should be zero for normal use.
+     * The test_case parameter tweaks the deterministic nonce.
      */
     bool Sign(const uint256& hash, std::vector<unsigned char>& vchSig, uint32_t test_case = 0) const;