diff --git a/src/test/net_tests.cpp b/src/test/net_tests.cpp
--- a/src/test/net_tests.cpp
+++ b/src/test/net_tests.cpp
@@ -96,6 +96,7 @@
 }
 
 BOOST_AUTO_TEST_CASE(caddrdb_read) {
+    SetDataDir("caddrdb_read");
     CAddrManUncorrupted addrmanUncorrupted;
     addrmanUncorrupted.MakeDeterministic();
 
@@ -140,6 +141,7 @@
 }
 
 BOOST_AUTO_TEST_CASE(caddrdb_read_corrupted) {
+    SetDataDir("caddrdb_read_corrupted");
     CAddrManCorrupted addrmanCorrupted;
     addrmanCorrupted.MakeDeterministic();