1 files changed, 3 insertions, 1 deletions
diff --git a/src/data.c b/src/data.c
index be64ef07..0a629106 100644
--- a/src/data.c
+++ b/src/data.c
@@ -23,7 +23,9 @@
 #endif
 
 #include <stdlib.h>
-#include <unistd.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 #include <errno.h>
 #include <string.h>