diff --git a/tools/net.cpp b/tools/net.cpp
index 9027862..c971cb8 100644
--- a/tools/net.cpp
+++ b/tools/net.cpp
@@ -81,7 +81,7 @@
         struct addrinfo hints;
         std::memset(&hints, 0, sizeof(hints));
         hints.ai_flags = AI_NUMERICHOST;
-        hints.ai_family = AF_INET;
+        hints.ai_family = AF_UNSPEC;
         hints.ai_socktype = SOCK_STREAM;
 
         struct addrinfo *addrs, *addr;
diff --git a/tools/test/tools_net_unittest.cpp b/tools/test/tools_net_unittest.cpp
index 51556ff..faf68d0 100644
--- a/tools/test/tools_net_unittest.cpp
+++ b/tools/test/tools_net_unittest.cpp
@@ -64,7 +64,7 @@
             sysMock,
             getaddrinfo(StrEq(host), StrEq(port),
                         AllOf(Field(&addrinfo::ai_flags, AI_NUMERICHOST),
-                              Field(&addrinfo::ai_family, AF_INET),
+                              Field(&addrinfo::ai_family, AF_UNSPEC),
                               Field(&addrinfo::ai_socktype, SOCK_STREAM)),
                         NotNull()))
             .WillOnce(DoAll(SetArgPointee<3>(&addr), Return(0)));
@@ -127,7 +127,7 @@
     EXPECT_CALL(sysMock,
                 getaddrinfo(StrEq(host), StrEq(port),
                             AllOf(Field(&addrinfo::ai_flags, AI_NUMERICHOST),
-                                  Field(&addrinfo::ai_family, AF_INET),
+                                  Field(&addrinfo::ai_family, AF_UNSPEC),
                                   Field(&addrinfo::ai_socktype, SOCK_STREAM)),
                             NotNull()))
         .WillOnce(Return(EAI_ADDRFAMILY));