1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/dh/dh_check.c b/src/lib/libcrypto/dh/dh_check.c
index 7e5cfd8bfc..f0373f7d68 100644
--- a/src/lib/libcrypto/dh/dh_check.c
+++ b/src/lib/libcrypto/dh/dh_check.c
@@ -70,7 +70,7 @@
  * should hold.
  */
 
-int DH_check(DH *dh, int *ret)
+int DH_check(const DH *dh, int *ret)
         {
         int ok=0;
         BN_CTX *ctx=NULL;