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-rw-r--r--lib/algorithms/sign.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/algorithms/sign.c b/lib/algorithms/sign.c
index 511f19f712..e2c926b066 100644
--- a/lib/algorithms/sign.c
+++ b/lib/algorithms/sign.c
@@ -465,6 +465,7 @@ unsigned gnutls_sign_is_secure2(gnutls_sign_algorithm_t algorithm, unsigned int
* gnutls_sign_list:
*
* Get a list of supported public key signature algorithms.
+ * This function is not thread safe.
*
* Returns: a (0)-terminated list of #gnutls_sign_algorithm_t
* integers indicating the available ciphers.