diff --git a/renderdoc/common/dds_readwrite.h b/renderdoc/common/dds_readwrite.h
index a718889a1..0723057fd 100644
--- a/renderdoc/common/dds_readwrite.h
+++ b/renderdoc/common/dds_readwrite.h
@@ -24,6 +24,7 @@
 
 #pragma once
 
+#include <stdio.h>
 #include "api/replay/data_types.h"
 
 struct dds_data
diff --git a/renderdoc/core/core.h b/renderdoc/core/core.h
index 0f7df0726..4440714df 100644
--- a/renderdoc/core/core.h
+++ b/renderdoc/core/core.h
@@ -26,6 +26,7 @@
 #pragma once
 
 #include <stdint.h>
+#include <stdio.h>
 #include <map>
 #include "api/app/renderdoc_app.h"
 #include "api/replay/apidefs.h"
diff --git a/renderdoc/os/os_specific.h b/renderdoc/os/os_specific.h
index 5191bcaea..b5f796d59 100644
--- a/renderdoc/os/os_specific.h
+++ b/renderdoc/os/os_specific.h
@@ -34,6 +34,7 @@
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
+#include <stdio.h>
 #include <functional>
 #include "api/replay/rdcarray.h"
 #include "api/replay/rdcpair.h"
diff --git a/renderdoc/os/posix/linux/linux_stringio.cpp b/renderdoc/os/posix/linux/linux_stringio.cpp
index 27b25476c..d0def39f0 100644
--- a/renderdoc/os/posix/linux/linux_stringio.cpp
+++ b/renderdoc/os/posix/linux/linux_stringio.cpp
@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  ******************************************************************************/
 
+#include <ctype.h>
 #include <dlfcn.h>
 #include <errno.h>
 #include <iconv.h>
diff --git a/renderdoc/strings/utf8printf.cpp b/renderdoc/strings/utf8printf.cpp
index d09fd2d64..254841d22 100644
--- a/renderdoc/strings/utf8printf.cpp
+++ b/renderdoc/strings/utf8printf.cpp
@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  ******************************************************************************/
 
+#include <wchar.h>
 #include "common/common.h"
 #include "os/os_specific.h"