diff --git a/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-lr-001.html.ini b/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-lr-001.html.ini
index fd1c49f711b2..4560adda9f7b 100644
--- a/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-lr-001.html.ini
+++ b/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-lr-001.html.ini
@@ -1,3 +1,4 @@
 [grid-container-scrollbar-vertical-lr-001.html]
   expected:
     if os == "mac": FAIL
+    if (os == 'linux' and os_version == '18.04'): FAIL # Bug 1601497
diff --git a/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-rl-001.html.ini b/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-rl-001.html.ini
index 442a2746643a..196f3a1954a4 100644
--- a/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-rl-001.html.ini
+++ b/testing/web-platform/meta/css/css-grid/grid-model/grid-container-scrollbar-vertical-rl-001.html.ini
@@ -1,3 +1,4 @@
 [grid-container-scrollbar-vertical-rl-001.html]
   expected:
     if os == "mac": FAIL
+    if (os == 'linux' and os_version == '18.04'): FAIL # Bug 1601500
\ No newline at end of file