diff --git a/src/fileio_func.h b/src/fileio_func.h
index 6dea50e9ca..25d961bc0c 100644
--- a/src/fileio_func.h
+++ b/src/fileio_func.h
@@ -116,7 +116,6 @@ DECLARE_ENUM_AS_BIT_SET(TarScanner::Mode)
 
 /* Implementation of opendir/readdir/closedir for Windows */
 #if defined(WIN32)
-#include <windows.h>
 struct DIR;
 
 struct dirent { // XXX - only d_name implemented
@@ -127,19 +126,6 @@ struct dirent { // XXX - only d_name implemented
 	DIR *dir;
 };
 
-struct DIR {
-	HANDLE hFind;
-	/* the dirent returned by readdir.
-	 * note: having only one global instance is not possible because
-	 * multiple independent opendir/readdir sequences must be supported. */
-	dirent ent;
-	WIN32_FIND_DATA fd;
-	/* since opendir calls FindFirstFile, we need a means of telling the
-	 * first call to readdir that we already have a file.
-	 * that's the case iff this is true */
-	bool at_first_entry;
-};
-
 DIR *opendir(const TCHAR *path);
 struct dirent *readdir(DIR *d);
 int closedir(DIR *d);
diff --git a/src/ini.cpp b/src/ini.cpp
index fe49f5fe7e..e82daaceb0 100644
--- a/src/ini.cpp
+++ b/src/ini.cpp
@@ -21,6 +21,7 @@
 #endif
 
 #ifdef WIN32
+# include <windows.h>
 # include <shellapi.h>
 # include "core/mem_func.hpp"
 #endif
diff --git a/src/os/windows/win32.cpp b/src/os/windows/win32.cpp
index 07227222a6..dc38a69b35 100644
--- a/src/os/windows/win32.cpp
+++ b/src/os/windows/win32.cpp
@@ -89,6 +89,19 @@ void OSOpenBrowser(const char *url)
  * modified from Jan Wassenberg's GPL implementation posted over at
  * http://www.gamedev.net/community/forums/topic.asp?topic_id=364584&whichpage=1&#2398903 */
 
+struct DIR {
+	HANDLE hFind;
+	/* the dirent returned by readdir.
+	 * note: having only one global instance is not possible because
+	 * multiple independent opendir/readdir sequences must be supported. */
+	dirent ent;
+	WIN32_FIND_DATA fd;
+	/* since opendir calls FindFirstFile, we need a means of telling the
+	 * first call to readdir that we already have a file.
+	 * that's the case iff this is true */
+	bool at_first_entry;
+};
+
 /* suballocator - satisfies most requests with a reusable static instance.
  * this avoids hundreds of alloc/free which would fragment the heap.
  * To guarantee concurrency, we fall back to malloc if the instance is