diff --git a/c/dump.c b/c/dump.c
index 0ed229f..caec3dc 100644
--- a/c/dump.c
+++ b/c/dump.c
@@ -1,6 +1,7 @@
 #include <sys/types.h>
 
 #include <stdarg.h>
+#include <stdint.h>
 #include <stdlib.h>
 
 #include "dtypes.h"
diff --git a/c/fs_linux.c b/c/fs_linux.c
index faaa40a..40c887b 100644
--- a/c/fs_linux.c
+++ b/c/fs_linux.c
@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 
diff --git a/c/ios.c b/c/ios.c
index b326f03..1302651 100644
--- a/c/ios.c
+++ b/c/ios.c
@@ -1,11 +1,12 @@
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
 #include <assert.h>
-#include <limits.h>
 #include <errno.h>
-#include <wchar.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdint.h>
 #include <stdio.h>  // for printf
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
 
 #include "dtypes.h"
 
diff --git a/c/time_unix.c b/c/time_unix.c
index 0223bc9..d48da3f 100644
--- a/c/time_unix.c
+++ b/c/time_unix.c
@@ -1,6 +1,7 @@
 #include <sys/poll.h>
 #include <sys/time.h>
 
+#include <stdint.h>
 #include <string.h>
 #include <time.h>
 #include <unistd.h>