diff --git a/lib/index/mu-scanner.cc b/lib/index/mu-scanner.cc
index 18641b93..518eec91 100644
--- a/lib/index/mu-scanner.cc
+++ b/lib/index/mu-scanner.cc
@@ -24,6 +24,7 @@
 #include <mutex>
 #include <atomic>
 #include <thread>
+#include <cstring>
 
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/lib/utils/mu-logger.cc b/lib/utils/mu-logger.cc
index 2956148b..eaeb640f 100644
--- a/lib/utils/mu-logger.cc
+++ b/lib/utils/mu-logger.cc
@@ -26,6 +26,7 @@
 
 #include <iostream>
 #include <fstream>
+#include <cstring>
 
 #include "mu-logger.hh"