diff --git a/kxsldbg/kxsldbgpart/libxsldbg/files.cpp b/kxsldbg/kxsldbgpart/libxsldbg/files.cpp
index 77e6c1bb..00540e6d 100644
--- a/kxsldbg/kxsldbgpart/libxsldbg/files.cpp
+++ b/kxsldbg/kxsldbgpart/libxsldbg/files.cpp
@@ -34,6 +34,8 @@
 #include "xsldbgthread.h"
 #ifdef WIN32
 #include <direct.h>
+#else
+#include <unistd.h>
 #endif
 
 #endif /* BUILD_DOCS */