diff --git a/protocol_analyzer.c b/protocol_analyzer.c
index 902dfb7..f83a9ac 100644
--- a/protocol_analyzer.c
+++ b/protocol_analyzer.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <pcap.h>
-#include <ndpi_api.h>
+#include <libndpi/ndpi_api.h>
 #include <netinet/in.h>
 #include <netinet/ip.h>
 #include <netinet/tcp.h>