diff --git a/tests/Network/EchoServer.cpp b/tests/Network/EchoServer.cpp
index 49fb8912..2a420fba 100644
--- a/tests/Network/EchoServer.cpp
+++ b/tests/Network/EchoServer.cpp
@@ -99,7 +99,7 @@ class cEchoServerCallbacks:
 
 
 
-void DoTest(void)
+static void DoTest(void)
 {
 	LOGD("EchoServer: starting up");
 	cServerHandlePtr Server = cNetwork::Listen(9876, std::make_shared<cEchoServerCallbacks>());
diff --git a/tests/Network/Google.cpp b/tests/Network/Google.cpp
index 54bfa6de..ab366f9e 100644
--- a/tests/Network/Google.cpp
+++ b/tests/Network/Google.cpp
@@ -97,7 +97,7 @@ public:
 
 
 
-void DoTest(void)
+static void DoTest(void)
 {
 	cEvent evtFinish;
 
diff --git a/tests/Network/NameLookup.cpp b/tests/Network/NameLookup.cpp
index 16fa8042..4781a59e 100644
--- a/tests/Network/NameLookup.cpp
+++ b/tests/Network/NameLookup.cpp
@@ -46,7 +46,7 @@ public:
 
 
 
-void DoTest(void)
+static void DoTest(void)
 {
 	cEvent evtFinish;