diff --git a/src/common/pcap-file.h b/src/common/pcap-file.h
index 8b1a9a283..2e9fe03e7 100644
--- a/src/common/pcap-file.h
+++ b/src/common/pcap-file.h
@@ -20,6 +20,7 @@
 #define PCAP_FILE_H
 
 #include <string>
+#include <stdint.h>
 
 namespace ns3 {
 
diff --git a/src/core/test.h b/src/core/test.h
index 72a52150f..31d720209 100644
--- a/src/core/test.h
+++ b/src/core/test.h
@@ -26,6 +26,7 @@
 #include <vector>
 #include <list>
 #include <limits>
+#include <stdint.h>
 #include <sys/times.h>
 // 
 // Note on below macros: