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-rw-r--r--src/src/auths/call_radius.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/src/auths/call_radius.c b/src/src/auths/call_radius.c
index 2064ed221..1201078dc 100644
--- a/src/src/auths/call_radius.c
+++ b/src/src/auths/call_radius.c
@@ -60,10 +60,10 @@ Returns: OK if authentication succeeded
*/
int
-auth_call_radius(uschar *s, uschar **errptr)
+auth_call_radius(const uschar *s, uschar **errptr)
{
uschar *user;
-uschar *radius_args = s;
+const uschar *radius_args = s;
int result;
int sep = 0;