diff --git a/lib/gssapi/compat.c b/lib/gssapi/compat.c
index 4cc16e59a..49d926f9d 100644
--- a/lib/gssapi/compat.c
+++ b/lib/gssapi/compat.c
@@ -108,4 +108,6 @@ gss_krb5_compat_des3_mic(OM_uint32 *minor_status, gss_ctx_id_t ctx, int on)
 	ctx->more_flags &= ~COMPAT_OLD_DES3;
     }
     ctx->more_flags |= COMPAT_OLD_DES3_SELECTED;
+
+    return 0;
 }
diff --git a/lib/gssapi/krb5/compat.c b/lib/gssapi/krb5/compat.c
index 4cc16e59a..49d926f9d 100644
--- a/lib/gssapi/krb5/compat.c
+++ b/lib/gssapi/krb5/compat.c
@@ -108,4 +108,6 @@ gss_krb5_compat_des3_mic(OM_uint32 *minor_status, gss_ctx_id_t ctx, int on)
 	ctx->more_flags &= ~COMPAT_OLD_DES3;
     }
     ctx->more_flags |= COMPAT_OLD_DES3_SELECTED;
+
+    return 0;
 }