diff --git a/tests/core/poll-test.c b/tests/core/poll-test.c
index 02476863b..0c2563b72 100644
--- a/tests/core/poll-test.c
+++ b/tests/core/poll-test.c
@@ -22,7 +22,7 @@
 
 #define DATASTR "This is a test"
 #define STRLEN 8092
-#define PORT 7777
+#define PORT 47777
 #define NUM 100
 
 #ifndef AI_PASSIVE
diff --git a/tests/core/socket-test.c b/tests/core/socket-test.c
index 7ae84a57f..280715093 100644
--- a/tests/core/socket-test.c
+++ b/tests/core/socket-test.c
@@ -22,8 +22,8 @@
 
 #define DATASTR "This is a test"
 #define STRLEN 8092
-#define PORT 7777
-#define PORT2 7778
+#define PORT 47777
+#define PORT2 47778
 
 #ifndef AI_PASSIVE
 #define AI_PASSIVE 1