diff --git a/tests/integration/partial/test_deposition.py b/tests/integration/partial/test_deposition.py
index 6654142ddcc2a9b9abe917f927165df1f6bbbf47..2704f012d7b24bec4242a0438092ceb7e45f582a 100644
--- a/tests/integration/partial/test_deposition.py
+++ b/tests/integration/partial/test_deposition.py
@@ -46,7 +46,7 @@ class TestDeposition(BaseDepoTestSuite.DepoTestSuite):
         # prefix: str = "temp_depo"
 
         # may be reusing a non-timestamped output file during development, so allow extant TEST_OUT_PATH
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + "/"
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + "/"
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
diff --git a/tests/integration/partial/test_env_suit.py b/tests/integration/partial/test_env_suit.py
index 717732f4f3f36d26adb886be8dc03615c4ca7d8a..bd51b39669fc07e3e0bd43769c95b286ee9aa575 100644
--- a/tests/integration/partial/test_env_suit.py
+++ b/tests/integration/partial/test_env_suit.py
@@ -46,7 +46,7 @@ class TestEnvSuit(BaseEnvSuitTestSuite.EnvSuitTestSuite):
         # prefix: str = "temp_env"
 
         # may be reusing a non-timestamped output file during development, so allow extant TEST_OUT_PATH
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + "/"
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + "/"
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
diff --git a/tests/integration/partial/test_epi.py b/tests/integration/partial/test_epi.py
index 31018878944799b8b51773e33d0a6cd619e3cd1f..59d5b5a611b5c27c2f6c0040e2e1a5b8d742b406 100644
--- a/tests/integration/partial/test_epi.py
+++ b/tests/integration/partial/test_epi.py
@@ -41,7 +41,7 @@ class TestEpi(BaseEpiTestSuite.EpiTestSuite):
         prefix: str = "temp_epi_" + nowstring
         # prefix: str = "temp_epi"
 
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + "/"
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + "/"
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH