diff --git a/app/src/main/jni/core/pcap_dump.h b/app/src/main/jni/core/pcap_dump.h
index c03a9052..945634c8 100644
--- a/app/src/main/jni/core/pcap_dump.h
+++ b/app/src/main/jni/core/pcap_dump.h
@@ -22,6 +22,7 @@
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <sys/types.h>
 
 #define PCAPDROID_TRAILER_MAGIC 0x01072021
 #define PCAPDROID_PEN 62652