diff --git a/src/tests/upgrade-test-1.c b/src/tests/upgrade-test-1.c
index f0b886e7ada..07a8e9b97a5 100644
--- a/src/tests/upgrade-test-1.c
+++ b/src/tests/upgrade-test-1.c
@@ -24,7 +24,7 @@ int CHECK_RESULTS=0;
 enum { old_default_cachesize=1024 }; // MB
 int CACHESIZE=old_default_cachesize;
 
-char *db_v3_dir = "../../utils/dir.preload-3.1-db.c.tdb";
+char *db_v3_dir = "../../utils/preload-3.1-db";
 char *db_v4_dir = "dir.preload-3.1-db.c.tdb";
 char *env_dir = ENVDIR; // the default env_dir.
 
diff --git a/src/tests/upgrade-test-2.c b/src/tests/upgrade-test-2.c
index 25cc43840c1..11e730bd211 100644
--- a/src/tests/upgrade-test-2.c
+++ b/src/tests/upgrade-test-2.c
@@ -22,7 +22,7 @@ int CHECK_RESULTS=0;
 enum { old_default_cachesize=1024 }; // MB
 int CACHESIZE=old_default_cachesize;
 
-char *db_v3_dir = "../../utils/dir.preload-3.1-db.c.tdb";
+char *db_v3_dir = "../../utils/preload-3.1-db";
 char *db_v4_dir = "dir.preload-3.1-db.c.tdb";
 char *env_dir = ENVDIR; // the default env_dir.
 
diff --git a/src/tests/upgrade-test-3.c b/src/tests/upgrade-test-3.c
index 2b6743e6d7d..50e6211e819 100644
--- a/src/tests/upgrade-test-3.c
+++ b/src/tests/upgrade-test-3.c
@@ -22,7 +22,7 @@ int CHECK_RESULTS=0;
 enum { old_default_cachesize=1024 }; // MB
 int CACHESIZE=old_default_cachesize;
 
-char *db_v3_dir = "../../utils/dir.preload-3.1-db.c.tdb";
+char *db_v3_dir = "../../utils/preload-3.1-db";
 char *db_v4_dir = "dir.preload-3.1-db.c.tdb";
 char *env_dir = ENVDIR; // the default env_dir.
 
diff --git a/src/tests/upgrade-test-4.c b/src/tests/upgrade-test-4.c
index 492aff60d8e..1014e21ae3d 100644
--- a/src/tests/upgrade-test-4.c
+++ b/src/tests/upgrade-test-4.c
@@ -23,7 +23,7 @@ enum { old_default_cachesize=1024 }; // MB
 int CACHESIZE=old_default_cachesize;
 enum {ROWS_PER_TRANSACTION=10000};
 
-char *db_v3_dir = "../../utils/dir.preload-3.1-db.c.tdb";
+char *db_v3_dir = "../../utils/preload-3.1-db";
 char *db_v4_dir = "dir.preload-3.1-db.c.tdb";
 char *env_dir = ENVDIR; // the default env_dir.