diff --git a/analyzers/sync.ixx b/analyzers/sync.ixx
index 15fdfcb..41d4ccc 100644
--- a/analyzers/sync.ixx
+++ b/analyzers/sync.ixx
@@ -1,4 +1,5 @@
 module;
+#include <cstdint>
 #include <utility>
 #include <vector>
 
diff --git a/cd/cd_dump.ixx b/cd/cd_dump.ixx
index c75ef65..a05c3c4 100644
--- a/cd/cd_dump.ixx
+++ b/cd/cd_dump.ixx
@@ -2,6 +2,7 @@ module;
 #include <algorithm>
 #include <bit>
 #include <cstdint>
+#include <cstring>
 #include <filesystem>
 #include <format>
 #include <fstream>
diff --git a/cd/fix_msf.ixx b/cd/fix_msf.ixx
index 2c31bcf..5a5345f 100644
--- a/cd/fix_msf.ixx
+++ b/cd/fix_msf.ixx
@@ -1,5 +1,6 @@
 module;
 
+#include <cstring>
 #include <filesystem>
 #include <fstream>
 #include <list>
diff --git a/cd/split.ixx b/cd/split.ixx
index 36b8c5b..406bfff 100644
--- a/cd/split.ixx
+++ b/cd/split.ixx
@@ -1,5 +1,6 @@
 module;
 #include <chrono>
+#include <cstring>
 #include <filesystem>
 #include <fstream>
 #include <limits>
diff --git a/cd/toc.ixx b/cd/toc.ixx
index f2c0384..8f8aa82 100644
--- a/cd/toc.ixx
+++ b/cd/toc.ixx
@@ -1,6 +1,8 @@
 module;
 #include <cctype>
+#include <cmath>
 #include <cstdint>
+#include <cstring>
 #include <format>
 #include <map>
 #include <ostream>
diff --git a/debug.ixx b/debug.ixx
index 67e9948..af42649 100644
--- a/debug.ixx
+++ b/debug.ixx
@@ -1,6 +1,7 @@
 module;
 #include <bit>
 #include <cstdint>
+#include <cstring>
 #include <filesystem>
 #include <fstream>
 #include <map>
diff --git a/drive.ixx b/drive.ixx
index 4bdb307..5c41a7d 100644
--- a/drive.ixx
+++ b/drive.ixx
@@ -1,6 +1,7 @@
 module;
 #include <chrono>
 #include <cstdint>
+#include <cstring>
 #include <format>
 #include <fstream>
 #include <iostream>
diff --git a/dump.ixx b/dump.ixx
index 9028869..6112775 100644
--- a/dump.ixx
+++ b/dump.ixx
@@ -1,5 +1,6 @@
 module;
 #include <algorithm>
+#include <cstring>
 #include <filesystem>
 #include <format>
 #include <fstream>
diff --git a/dvd/css/css.ixx b/dvd/css/css.ixx
index 4aa135b..e0ea7c2 100644
--- a/dvd/css/css.ixx
+++ b/dvd/css/css.ixx
@@ -2,6 +2,7 @@
 
 module;
 #include <algorithm>
+#include <cstring>
 #include <vector>
 #include "throw_line.hh"
 
diff --git a/dvd/dvd_key.ixx b/dvd/dvd_key.ixx
index df39e85..b8c6a4c 100644
--- a/dvd/dvd_key.ixx
+++ b/dvd/dvd_key.ixx
@@ -1,5 +1,6 @@
 module;
 #include <algorithm>
+#include <climits>
 #include <cstdint>
 #include <filesystem>
 #include <fstream>
diff --git a/filesystem/iso9660/iso9660_browser.ixx b/filesystem/iso9660/iso9660_browser.ixx
index e2a29f8..13ec64b 100644
--- a/filesystem/iso9660/iso9660_browser.ixx
+++ b/filesystem/iso9660/iso9660_browser.ixx
@@ -1,5 +1,6 @@
 module;
 #include <cstdint>
+#include <cstring>
 #include <functional>
 #include <memory>
 #include <queue>
diff --git a/filesystem/iso9660/iso9660_map.ixx b/filesystem/iso9660/iso9660_map.ixx
index 1948b70..367dacf 100644
--- a/filesystem/iso9660/iso9660_map.ixx
+++ b/filesystem/iso9660/iso9660_map.ixx
@@ -1,5 +1,6 @@
 module;
 #include <cstdint>
+#include <cstring>
 #include <map>
 #include <vector>
 #include "throw_line.hh"
diff --git a/readers/image_bin_form1_reader.ixx b/readers/image_bin_form1_reader.ixx
index 86b7a4d..057fb49 100644
--- a/readers/image_bin_form1_reader.ixx
+++ b/readers/image_bin_form1_reader.ixx
@@ -1,5 +1,6 @@
 module;
 #include <cstdint>
+#include <cstring>
 #include <filesystem>
 #include <fstream>
 #include "utils/throw_line.hh"
diff --git a/scsi/cmd.ixx b/scsi/cmd.ixx
index 1719a6e..29072d2 100644
--- a/scsi/cmd.ixx
+++ b/scsi/cmd.ixx
@@ -1,5 +1,6 @@
 module;
 #include <cstdint>
+#include <cstring>
 #include <format>
 #include <vector>
 
diff --git a/skeleton.ixx b/skeleton.ixx
index 18aefe5..ce236e6 100644
--- a/skeleton.ixx
+++ b/skeleton.ixx
@@ -1,6 +1,7 @@
 module;
 
 #include <algorithm>
+#include <cstring>
 #include <filesystem>
 #include <fstream>
 #include <list>
diff --git a/systems/dc.ixx b/systems/dc.ixx
index c5ae187..537a999 100644
--- a/systems/dc.ixx
+++ b/systems/dc.ixx
@@ -2,6 +2,7 @@ module;
 
 #include <cctype>
 #include <cstdint>
+#include <cstring>
 #include <filesystem>
 #include <format>
 #include <fstream>
diff --git a/systems/mcd.ixx b/systems/mcd.ixx
index 701c2aa..98cfc14 100644
--- a/systems/mcd.ixx
+++ b/systems/mcd.ixx
@@ -2,6 +2,7 @@ module;
 
 #include <cctype>
 #include <cstdint>
+#include <cstring>
 #include <filesystem>
 #include <format>
 #include <fstream>
diff --git a/systems/sat.ixx b/systems/sat.ixx
index 490abce..25fd844 100644
--- a/systems/sat.ixx
+++ b/systems/sat.ixx
@@ -2,6 +2,7 @@ module;
 
 #include <cctype>
 #include <cstdint>
+#include <cstring>
 #include <filesystem>
 #include <format>
 #include <fstream>
diff --git a/utils/misc.ixx b/utils/misc.ixx
index c4feb31..5f4aab1 100644
--- a/utils/misc.ixx
+++ b/utils/misc.ixx
@@ -6,6 +6,7 @@ module;
 #include <climits>
 #include <cmath>
 #include <cstdint>
+#include <cstring>
 #include <functional>
 #include <iomanip>
 #include <map>