diff --git a/src/dhcp-manager/systemd-dhcp/src/shared/macro.h b/src/dhcp-manager/systemd-dhcp/src/shared/macro.h
index 9ee332c8df..ceef491268 100644
--- a/src/dhcp-manager/systemd-dhcp/src/shared/macro.h
+++ b/src/dhcp-manager/systemd-dhcp/src/shared/macro.h
@@ -373,11 +373,11 @@ do {                                                                    \
 #define IN_SET(x, y, ...)                                               \
         ({                                                              \
                 const typeof(y) _y = (y);                               \
-                const typeof(_y) _x = (x);                              \
+                typeof(_y) _x = (x);                                    \
                 unsigned _i;                                            \
                 bool _found = false;                                    \
-                for (_i = 0; _i < 1 + sizeof((const typeof(_x)[]) { __VA_ARGS__ })/sizeof(const typeof(_x)); _i++) \
-                        if (((const typeof(_x)[]) { _y, __VA_ARGS__ })[_i] == _x) { \
+                for (_i = 0; _i < 1 + sizeof((typeof(_x)[]) { __VA_ARGS__ })/sizeof(typeof(_x)); _i++) \
+                        if (((typeof(_x)[]) { _y, __VA_ARGS__ })[_i] == _x) { \
                                 _found = true;                          \
                                 break;                                  \
                         }                                               \