diff --git a/crypto/digest/digest.c b/crypto/digest/digest.c
index 7082c48..ada1166 100644
--- a/crypto/digest/digest.c
+++ b/crypto/digest/digest.c
@@ -203,7 +203,7 @@
 }
 
 int EVP_DigestFinal(EVP_MD_CTX *ctx, uint8_t *md, unsigned int *size) {
-  EVP_DigestFinal_ex(ctx, md, size);
+  (void)EVP_DigestFinal_ex(ctx, md, size);
   EVP_MD_CTX_cleanup(ctx);
   return 1;
 }