diff --git a/Userland/Libraries/LibCore/FileWatcherLinux.cpp b/Userland/Libraries/LibCore/FileWatcherLinux.cpp
index 48d39986722..56e41faff16 100644
--- a/Userland/Libraries/LibCore/FileWatcherLinux.cpp
+++ b/Userland/Libraries/LibCore/FileWatcherLinux.cpp
@@ -11,6 +11,7 @@
 #include <Kernel/API/InodeWatcherFlags.h>
 #include <LibCore/Notifier.h>
 #include <errno.h>
+#include <limits.h>
 #include <string.h>
 #include <sys/inotify.h>
 #include <sys/ioctl.h>
diff --git a/Userland/Services/LookupServer/LookupServer.cpp b/Userland/Services/LookupServer/LookupServer.cpp
index 42b770ff67e..b0fdbfe7d2d 100644
--- a/Userland/Services/LookupServer/LookupServer.cpp
+++ b/Userland/Services/LookupServer/LookupServer.cpp
@@ -16,6 +16,7 @@
 #include <LibCore/LocalServer.h>
 #include <LibCore/Stream.h>
 #include <LibDNS/Packet.h>
+#include <limits.h>
 #include <stdio.h>
 #include <time.h>
 #include <unistd.h>