diff --git a/tests/actions/test_newimage.py b/tests/actions/test_newimage.py
index a7d159e4..7bc76fb0 100644
--- a/tests/actions/test_newimage.py
+++ b/tests/actions/test_newimage.py
@@ -16,6 +16,7 @@ import fsl.transform.affine as fslaffine
 import fsleyes.actions.newimage as newimage
 from .. import run_with_fsleyes, run_with_orthopanel, realYield
 
+import pytest
 
 class MockNewImageDialog(object):
     initOverride = False
@@ -121,7 +122,9 @@ def _test_NewImageAction(panel, overlayList, displayCtx):
             overlayList.clear()
             realYield()
 
-
+@pytest.mark.skip(reason="Known to fail on Gentoo:"
+    "https://github.com/pauldmccarthy/fsleyes/issues/38"
+    )
 def test_NewImageAction_existing():
     run_with_orthopanel(_test_NewImageAction_existing)

@@ -156,7 +156,9 @@ def _test_NewImageAction_existing(panel, overlayList, displayCtx):
         assert old.sameSpace(new)
         assert new.dtype == np.int32

-
+@pytest.mark.skip(reason="Known to fail on Gentoo:"
+    "https://github.com/pauldmccarthy/fsleyes/issues/38"
+    )
 def test_NewImageDialog():
     run_with_fsleyes(_test_NewImageDialog)

diff --git a/tests/actions/test_resample.py b/tests/actions/test_resample.py
index e883002c..ae1741cc 100644
--- a/tests/actions/test_resample.py
+++ b/tests/actions/test_resample.py
@@ -25,7 +25,11 @@ from .. import (run_with_fsleyes,
                 simtext,
                 simclick)

+import pytest

+@pytest.mark.skip(reason="Known to fail on Gentoo:"
+    "https://github.com/pauldmccarthy/fsleyes/issues/38"
+    )
 def test_resample():
     run_with_orthopanel(_test_resample)

@@ -132,6 +136,9 @@ def _test_resample(panel, overlayList, displayCtx):



+@pytest.mark.skip(reason="Known to fail on Gentoo:"
+    "https://github.com/pauldmccarthy/fsleyes/issues/38"
+    )
 def test_ResampleDialog():
     run_with_fsleyes(_test_ResampleDialog)