1 files changed, 1 insertions, 0 deletions
diff --git a/dsp.c b/dsp.c
index a969f043d..195a0da39 100755
--- a/dsp.c
+++ b/dsp.c
@@ -28,6 +28,7 @@
         detriment.
 */
 
+#include <sys/types.h>
 #include <asterisk/frame.h>
 #include <asterisk/channel.h>
 #include <asterisk/channel_pvt.h>