diff --git a/dlls/advapi32/crypt.c b/dlls/advapi32/crypt.c
index 8c08fca3eed..4fd2f095ae9 100644
--- a/dlls/advapi32/crypt.c
+++ b/dlls/advapi32/crypt.c
@@ -24,13 +24,19 @@
  *  - Thread-safing
  */
 
+#include "config.h"
+
 #include <time.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <sys/types.h>
-#include <sys/stat.h>
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
 #include <fcntl.h>
-#include <unistd.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 
 #include "crypt.h"
 #include "winnls.h"
diff --git a/dlls/shell32/shfldr_unixfs.c b/dlls/shell32/shfldr_unixfs.c
index d02a0664aaf..2bde3d9529f 100644
--- a/dlls/shell32/shfldr_unixfs.c
+++ b/dlls/shell32/shfldr_unixfs.c
@@ -23,7 +23,9 @@
 #include <stdarg.h>
 #include <limits.h>
 #include <dirent.h>
-#include <unistd.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 #ifdef HAVE_SYS_STAT_H
 # include <sys/stat.h>
 #endif