diff --git a/saveload.c b/saveload.c
index e4e6536006..6b62724be9 100644
--- a/saveload.c
+++ b/saveload.c
@@ -1392,7 +1392,7 @@ void SaveFileError(void)
 	SaveFileDone();
 }
 
-static Thread* save_thread;
+static OTTDThread* save_thread;
 
 /** We have written the whole game into memory, _save_pool, now find
  * and appropiate compressor and start writing to file.
diff --git a/thread.c b/thread.c
index 574301ea02..e9d5d0ff1f 100644
--- a/thread.c
+++ b/thread.c
@@ -5,8 +5,8 @@
 #include <stdlib.h>
 
 #if defined(__AMIGA__) || defined(__MORPHOS__)
-Thread* OTTDCreateThread(ThreadFunc function, void* arg) { return NULL; }
-void* OTTDJoinThread(Thread* t) { return NULL; }
+OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg) { return NULL; }
+void* OTTDJoinThread(OTTDThread* t) { return NULL; }
 
 
 #elif defined(__OS2__)
@@ -15,22 +15,22 @@ void* OTTDJoinThread(Thread* t) { return NULL; }
 #include <os2.h>
 #include <process.h>
 
-struct Thread {
+struct OTTDThread {
 	TID thread;
-	ThreadFunc func;
+	OTTDThreadFunc func;
 	void* arg;
 	void* ret;
 };
 
 static void Proxy(void* arg)
 {
-	Thread* t = arg;
+	OTTDThread* t = arg;
 	t->ret = t->func(t->arg);
 }
 
-Thread* OTTDCreateThread(ThreadFunc function, void* arg)
+OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg)
 {
-	Thread* t = malloc(sizeof(*t));
+	OTTDThread* t = malloc(sizeof(*t));
 
 	if (t == NULL) return NULL;
 
@@ -45,7 +45,7 @@ Thread* OTTDCreateThread(ThreadFunc function, void* arg)
 	}
 }
 
-void* OTTDJoinThread(Thread* t)
+void* OTTDJoinThread(OTTDThread* t)
 {
 	void* ret;
 
@@ -62,13 +62,13 @@ void* OTTDJoinThread(Thread* t)
 
 #include <pthread.h>
 
-struct Thread {
+struct OTTDThread {
 	pthread_t thread;
 };
 
-Thread* OTTDCreateThread(ThreadFunc function, void* arg)
+OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg)
 {
-	Thread* t = malloc(sizeof(*t));
+	OTTDThread* t = malloc(sizeof(*t));
 
 	if (t == NULL) return NULL;
 
@@ -80,7 +80,7 @@ Thread* OTTDCreateThread(ThreadFunc function, void* arg)
 	}
 }
 
-void* OTTDJoinThread(Thread* t)
+void* OTTDJoinThread(OTTDThread* t)
 {
 	void* ret;
 
@@ -96,23 +96,23 @@ void* OTTDJoinThread(Thread* t)
 
 #include <windows.h>
 
-struct Thread {
+struct OTTDThread {
 	HANDLE thread;
-	ThreadFunc func;
+	OTTDThreadFunc func;
 	void* arg;
 	void* ret;
 };
 
 static DWORD WINAPI Proxy(LPVOID arg)
 {
-	Thread* t = arg;
+	OTTDThread* t = arg;
 	t->ret = t->func(t->arg);
 	return 0;
 }
 
-Thread* OTTDCreateThread(ThreadFunc function, void* arg)
+OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg)
 {
-	Thread* t = malloc(sizeof(*t));
+	OTTDThread* t = malloc(sizeof(*t));
 	DWORD dwThreadId;
 
 	if (t == NULL) return NULL;
@@ -129,7 +129,7 @@ Thread* OTTDCreateThread(ThreadFunc function, void* arg)
 	}
 }
 
-void* OTTDJoinThread(Thread* t)
+void* OTTDJoinThread(OTTDThread* t)
 {
 	void* ret;
 
diff --git a/thread.h b/thread.h
index 66e0ceea3b..98f4f5ceef 100644
--- a/thread.h
+++ b/thread.h
@@ -3,11 +3,11 @@
 #ifndef THREAD_H
 #define THREAD_H
 
-typedef struct Thread Thread;
+typedef struct OTTDThread OTTDThread;
 
-typedef void* (*ThreadFunc)(void*);
+typedef void* (*OTTDThreadFunc)(void*);
 
-Thread* OTTDCreateThread(ThreadFunc, void*);
-void*   OTTDJoinThread(Thread*);
+OTTDThread* OTTDCreateThread(OTTDThreadFunc, void*);
+void*   OTTDJoinThread(OTTDThread*);
 
 #endif /* THREAD_H */