diff --git a/generator.py b/generator.py
index 15394ad..7727679 100755
--- a/generator.py
+++ b/generator.py
@@ -881,6 +881,7 @@ def emit_c_code(module: str) -> None:
 
     wrapper = open(wrapper_file, "w")
     wrapper.write("/* Generated by generator.py */\n\n")
+    wrapper.write("#include <stdlib.h>\n")
     wrapper.write("#include <Python.h>\n")
     wrapper.write("#include <libvirt/%s.h>\n" % (module,))
     wrapper.write("#include \"typewrappers.h\"\n")
diff --git a/libvirt-override.c b/libvirt-override.c
index 2d496a6..ac07346 100644
--- a/libvirt-override.c
+++ b/libvirt-override.c
@@ -18,6 +18,9 @@
 #define VIR_ENUM_SENTINELS
 
 #define PY_SSIZE_T_CLEAN
+
+#include <stdio.h>
+#include <string.h>
 #include <Python.h>
 #include <libvirt/libvirt.h>
 #include <libvirt/virterror.h>
diff --git a/libvirt-qemu-override.c b/libvirt-qemu-override.c
index ef72d51..4d31c8a 100644
--- a/libvirt-qemu-override.c
+++ b/libvirt-qemu-override.c
@@ -14,6 +14,7 @@
    which has over 180 autoconf-style HAVE_* definitions.  Shame on them.  */
 #undef HAVE_PTHREAD_H
 
+#include <stdio.h>
 #include <Python.h>
 #include <libvirt/libvirt-qemu.h>
 #include <libvirt/virterror.h>
diff --git a/libvirt-utils.c b/libvirt-utils.c
index a964779..ee2b118 100644
--- a/libvirt-utils.c
+++ b/libvirt-utils.c
@@ -19,6 +19,8 @@
  *
  */
 
+#include <string.h>
+
 #include <Python.h>
 
 /* Ugly python defines that, which is also defined in errno.h */
diff --git a/typewrappers.c b/typewrappers.c
index 3e34b36..2f37525 100644
--- a/typewrappers.c
+++ b/typewrappers.c
@@ -12,6 +12,8 @@
  * which has over 180 autoconf-style HAVE_* definitions.  Shame on them.  */
 #undef HAVE_PTHREAD_H
 
+#include <stdio.h>
+#include <string.h>
 #include "typewrappers.h"
 #include "libvirt-utils.h"