diff --git a/ui.h b/ui.h
index 3eb95129..90c41f03 100644
--- a/ui.h
+++ b/ui.h
@@ -8,6 +8,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _UI_EXTERN
 #define _UI_EXTERN extern
 #endif
@@ -515,4 +519,8 @@ struct uiAreaKeyEvent {
 	int Up;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/ui_darwin.h b/ui_darwin.h
index e70f8aa3..ffd7c9c9 100644
--- a/ui_darwin.h
+++ b/ui_darwin.h
@@ -7,6 +7,10 @@ This file assumes that you have imported <Cocoa/Cocoa.h> and "ui.h" beforehand.
 #ifndef __LIBUI_UI_DARWIN_H__
 #define __LIBUI_UI_DARWIN_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct uiDarwinControl uiDarwinControl;
 struct uiDarwinControl {
 	uiControl c;
@@ -65,4 +69,8 @@ _UI_EXTERN void uiDarwinSetControlFont(NSControl *c, NSControlSize size);
 // You can use this function from within your control implementations to return text strings that can be freed with uiFreeText().
 _UI_EXTERN char *uiDarwinNSStringToText(NSString *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/ui_unix.h b/ui_unix.h
index 17f50184..070e6a39 100644
--- a/ui_unix.h
+++ b/ui_unix.h
@@ -7,6 +7,10 @@ This file assumes that you have included <gtk/gtk.h> and "ui.h" beforehand. It p
 #ifndef __LIBUI_UI_UNIX_H__
 #define __LIBUI_UI_UNIX_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct uiUnixControl uiUnixControl;
 struct uiUnixControl {
 	uiControl c;
@@ -54,4 +58,8 @@ _UI_EXTERN void uiUnixFinishControl(uiControl *c);
 // uiUnixStrdupText() takes the given string and produces a copy of it suitable for being freed by uiFreeText().
 extern char *uiUnixStrdupText(const char *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/ui_windows.h b/ui_windows.h
index 9c3b6d74..3db6592e 100644
--- a/ui_windows.h
+++ b/ui_windows.h
@@ -7,6 +7,10 @@ This file assumes that you have included <windows.h> and "ui.h" beforehand. It p
 #ifndef __LIBUI_UI_WINDOWS_H__
 #define __LIBUI_UI_WINDOWS_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct uiWindowsSizing uiWindowsSizing;
 
 typedef struct uiWindowsControl uiWindowsControl;
@@ -157,4 +161,8 @@ _UI_EXTERN void uiWindowsUnregisterWM_HSCROLLHandler(HWND);
 _UI_EXTERN void uiWindowsRegisterReceiveWM_WININICHANGE(HWND);
 _UI_EXTERN void uiWindowsUnregisterReceiveWM_WININICHANGE(HWND);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif