diff --git a/hyprctl/main.cpp b/hyprctl/main.cpp
index c86406fc4..5d5113b87 100644
--- a/hyprctl/main.cpp
+++ b/hyprctl/main.cpp
@@ -26,6 +26,7 @@
 #include <regex>
 #include <sys/socket.h>
 #include <hyprutils/string/String.hpp>
+#include <cstring>
 using namespace Hyprutils::String;
 
 #include "Strings.hpp"
diff --git a/src/helpers/SdDaemon.cpp b/src/helpers/SdDaemon.cpp
index 25e0ca3b5..48c23e6b6 100644
--- a/src/helpers/SdDaemon.cpp
+++ b/src/helpers/SdDaemon.cpp
@@ -8,6 +8,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <string.h>
+#include <cstring>
 
 namespace Systemd {
     int SdBooted(void) {
diff --git a/src/managers/EventManager.cpp b/src/managers/EventManager.cpp
index 75c98e2a4..079a6b685 100644
--- a/src/managers/EventManager.cpp
+++ b/src/managers/EventManager.cpp
@@ -8,6 +8,7 @@
 #include <sys/types.h>
 #include <sys/un.h>
 #include <unistd.h>
+#include <cstring>
 
 CEventManager::CEventManager() {
     m_iSocketFD = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
diff --git a/src/xwayland/Server.cpp b/src/xwayland/Server.cpp
index cec582f62..200bec70b 100644
--- a/src/xwayland/Server.cpp
+++ b/src/xwayland/Server.cpp
@@ -19,6 +19,7 @@
 #include <sys/un.h>
 #include <unistd.h>
 #include <filesystem>
+#include <cstring>
 
 // TODO: cleanup
 static bool set_cloexec(int fd, bool cloexec) {