diff --git a/Libraries/LibC/sys/socket.h b/Libraries/LibC/sys/socket.h
index e39092c0d7..298b863388 100644
--- a/Libraries/LibC/sys/socket.h
+++ b/Libraries/LibC/sys/socket.h
@@ -169,7 +169,7 @@ static inline struct cmsghdr* CMSG_NXTHDR(struct msghdr* msg, struct cmsghdr* cm
     struct cmsghdr* next = (struct cmsghdr*)((char*)cmsg + CMSG_ALIGN(cmsg->cmsg_len));
     unsigned offset = (char*)next - (char*)msg->msg_control;
     if (msg->msg_controllen < offset + sizeof(struct cmsghdr))
-        return nullptr;
+        return NULL;
     return next;
 }
 
diff --git a/Libraries/LibC/syslog.h b/Libraries/LibC/syslog.h
index 1a396e67f6..77f3e419eb 100644
--- a/Libraries/LibC/syslog.h
+++ b/Libraries/LibC/syslog.h
@@ -132,7 +132,7 @@ CODE prioritynames[] = {
     { "none",    INTERNAL_NOPRI },
     { "notice",  LOG_NOTICE },
     { "warning", LOG_WARNING },
-    { nullptr, -1 },
+    { NULL, -1 },
 };
 
 CODE facilitynames[] = {
@@ -158,7 +158,7 @@ CODE facilitynames[] = {
     { "syslog",   LOG_SYSLOG },
     { "user",     LOG_USER },
     { "uucp",     LOG_UUCP },
-    { nullptr, -1 },
+    { NULL, -1 },
 };
 #endif