diff --git a/libspark/dmx.cpp b/libspark/dmx.cpp
index efeba62..d3ba4e7 100644
--- a/libspark/dmx.cpp
+++ b/libspark/dmx.cpp
@@ -61,6 +61,7 @@
 #include <poll.h>
 #include <errno.h>
 #include <inttypes.h>
+#include <unistd.h>
 
 #include <cstring>
 #include <cstdio>
diff --git a/libspark/playback_libeplayer3.cpp b/libspark/playback_libeplayer3.cpp
index 5fd46c2..90ba7fc 100644
--- a/libspark/playback_libeplayer3.cpp
+++ b/libspark/playback_libeplayer3.cpp
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 #include <audio_lib.h>
 #include <video_lib.h>