diff --git a/debian/changelog b/debian/changelog
index 376697b9c6..445389f8a0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -13,6 +13,9 @@ gtk+3.0 (3.24.0-4) UNRELEASED; urgency=medium
     - Install them in gtk-3-examples for now to avoid the NEW queue
   * d/p/no-accessibility-dump.patch: Drop, no longer needed.
     The build-time tests correctly set GTK_CSD=1 now.
+  * Stop marking some reftests as known failures. They now succeed on
+    all release architectures.
+    - d/p/reftest-known-fail.patch: Drop, no longer needed
 
  -- Simon McVittie <smcv@debian.org>  Thu, 13 Sep 2018 08:29:08 +0100
 
diff --git a/debian/patches/reftest-known-fail.patch b/debian/patches/reftest-known-fail.patch
deleted file mode 100644
index b2d28655de..0000000000
--- a/debian/patches/reftest-known-fail.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-From: Michael Biebl <biebl@debian.org>
-Date: Mon, 2 May 2016 01:18:04 +0200
-Subject: Mark known failing tests as non-fatal
-
-Forwarded: no
----
- testsuite/reftests/gtk-reftest.c | 22 +++++++++++++++++++++-
- 1 file changed, 21 insertions(+), 1 deletion(-)
-
-diff --git a/testsuite/reftests/gtk-reftest.c b/testsuite/reftests/gtk-reftest.c
-index 4930af8..69f906c 100644
---- a/testsuite/reftests/gtk-reftest.c
-+++ b/testsuite/reftests/gtk-reftest.c
-@@ -253,6 +253,20 @@ save_image (cairo_surface_t *surface,
-   g_free (filename);
- }
- 
-+static gboolean
-+known_fail(const char *test_name)
-+{
-+  char *filename = get_test_file (test_name, ".ui.known_fail", TRUE);
-+
-+  if (filename)
-+    {
-+      g_free (filename);
-+      return TRUE;
-+    }
-+
-+  return FALSE;
-+}
-+
- static void
- test_ui_file (GFile *file)
- {
-@@ -285,7 +299,13 @@ test_ui_file (GFile *file)
-   if (diff_image)
-     {
-       save_image (diff_image, ui_file, ".diff.png");
--      g_test_fail ();
-+      if (known_fail(ui_file))
-+        {
-+          printf("KNOWN FAIL: ");
-+          g_test_message ("KNOWN FAIL: %s", ui_file);
-+        }
-+      else
-+        g_test_fail ();
-     }
- 
-   remove_extra_css (provider);
diff --git a/debian/patches/series b/debian/patches/series
index 2f0cbc6326..f16fd05579 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -9,5 +9,4 @@ Add-a-missing-include.patch
 018_gdkenumtypes.c_location.patch
 022_disable-viqr-im-for-vi-locale.patch
 060_ignore-random-icons.patch
-reftest-known-fail.patch
 Don-t-test-default-constructed-GdkPixbuf-properties.patch
diff --git a/debian/rules b/debian/rules
index 87ca4c0e8b..100e0cbce0 100755
--- a/debian/rules
+++ b/debian/rules
@@ -137,7 +137,6 @@ override_dh_clean: debian/control
 	# gross kludge to force control generation with the %.in target
 	touch debian/control.in
 	rm -f $(call dh_subst_files,$(binaries))
-	rm -f testsuite/reftests/*.ui.known_fail
 	rm -rf debian/build debian/install
 	# The build system does not automatically update the GResource files
 	# when resources change. Force an update in case we ship a patch which
@@ -174,11 +173,6 @@ ifneq ($(filter %-udeb,$(binaries)),)
 endif
 
 override_dh_auto_test:
-	# Mark reftests with known failures as non-fatal
-	touch testsuite/reftests/nonresizable-size.ui.known_fail
-	touch testsuite/reftests/window-show-contents-on-map.ui.known_fail
-	touch testsuite/reftests/inherit-and-initial.ui.known_fail
-	touch testsuite/reftests/textview-margins.ui.known_fail
 	# So that gsettings can find the (uninstalled) gtk schemas
 	mkdir -p debian/build/glib-2.0/schemas/
 	cp gtk/org.gtk.* debian/build/glib-2.0/schemas/