diff --git a/board/io3.c b/board/io3.c
index 565a693..a99a4b3 100644
--- a/board/io3.c
+++ b/board/io3.c
@@ -12,6 +12,7 @@
 
 #include <windows.h>
 
+#include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/board/sg-frame.c b/board/sg-frame.c
index d199af5..d65dbb1 100644
--- a/board/sg-frame.c
+++ b/board/sg-frame.c
@@ -1,5 +1,6 @@
 #include <windows.h>
 
+#include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/chunihook/jvs.c b/chunihook/jvs.c
index b505740..86fec1e 100644
--- a/chunihook/jvs.c
+++ b/chunihook/jvs.c
@@ -1,5 +1,6 @@
 #include <windows.h>
 
+#include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/chunihook/slider-frame.c b/chunihook/slider-frame.c
index 1cb1091..af18e84 100644
--- a/chunihook/slider-frame.c
+++ b/chunihook/slider-frame.c
@@ -1,5 +1,6 @@
 #include <windows.h>
 
+#include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/jvs/jvs-frame.c b/jvs/jvs-frame.c
index acfff05..37fb5e7 100644
--- a/jvs/jvs-frame.c
+++ b/jvs/jvs-frame.c
@@ -1,6 +1,7 @@
 #include <windows.h>
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
diff --git a/nu/eeprom.c b/nu/eeprom.c
index 88400ce..7e2482a 100644
--- a/nu/eeprom.c
+++ b/nu/eeprom.c
@@ -1,5 +1,7 @@
 #include <windows.h>
 
+#include <assert.h>
+
 #include "hook/iohook.h"
 
 #include "nu/eeprom.h"
diff --git a/nu/nvram.c b/nu/nvram.c
index 2cb8b29..1f34d61 100644
--- a/nu/nvram.c
+++ b/nu/nvram.c
@@ -2,6 +2,7 @@
 
 #include <assert.h>
 #include <stddef.h>
+#include <stdint.h>
 
 #include "util/dprintf.h"
 
diff --git a/nu/sram.c b/nu/sram.c
index 08083d6..16f7bf2 100644
--- a/nu/sram.c
+++ b/nu/sram.c
@@ -1,5 +1,7 @@
 #include <windows.h>
 
+#include <assert.h>
+
 #include "hook/iohook.h"
 
 #include "nu/sram.h"
diff --git a/util/gfx.c b/util/gfx.c
index 0cc557e..7b138b3 100644
--- a/util/gfx.c
+++ b/util/gfx.c
@@ -1,6 +1,7 @@
 #include <windows.h>
 #include <d3d9.h>
 
+#include <stdbool.h>
 #include <stdlib.h>
 
 #include "hook/com-proxy.h"
diff --git a/util/setupapi.c b/util/setupapi.c
index e7c2b46..a9b8279 100644
--- a/util/setupapi.c
+++ b/util/setupapi.c
@@ -1,6 +1,7 @@
 #include <windows.h>
 #include <setupapi.h>
 
+#include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>