diff --git a/linux-user/alpha/sockbits.h b/linux-user/alpha/sockbits.h
index f5397dd875..d54dc98c09 100644
--- a/linux-user/alpha/sockbits.h
+++ b/linux-user/alpha/sockbits.h
@@ -18,7 +18,7 @@
 #define TARGET_SO_BROADCAST 0x0020
 #define TARGET_SO_LINGER    0x0080
 #define TARGET_SO_OOBINLINE 0x0100
-/* To add :#define TARGET_SO_REUSEPORT 0x0200 */
+#define TARGET_SO_REUSEPORT 0x0200
 
 #define TARGET_SO_TYPE      0x1008
 #define TARGET_SO_ERROR 0x1007
diff --git a/linux-user/generic/sockbits.h b/linux-user/generic/sockbits.h
index 99505f1f85..e44733c601 100644
--- a/linux-user/generic/sockbits.h
+++ b/linux-user/generic/sockbits.h
@@ -29,7 +29,7 @@
 #define TARGET_SO_PRIORITY     12
 #define TARGET_SO_LINGER       13
 #define TARGET_SO_BSDCOMPAT    14
-/* To add :#define TARGET_SO_REUSEPORT 15 */
+#define TARGET_SO_REUSEPORT    15
 #define TARGET_SO_PASSCRED     16
 #define TARGET_SO_PEERCRED     17
 #define TARGET_SO_RCVLOWAT     18
diff --git a/linux-user/mips/sockbits.h b/linux-user/mips/sockbits.h
index 370d13ed86..0f022cd598 100644
--- a/linux-user/mips/sockbits.h
+++ b/linux-user/mips/sockbits.h
@@ -28,10 +28,7 @@
                                         */
 #define TARGET_SO_OOBINLINE 0x0100     /* Receive out-of-band data in-band.
                                         */
-#if 0
-/* To add: Allow local address and port reuse. */
 #define TARGET_SO_REUSEPORT 0x0200
-#endif
 
 #define TARGET_SO_TYPE         0x1008  /* Compatible name for SO_STYLE. */
 #define TARGET_SO_STYLE        SO_TYPE /* Synonym */