diff --git a/test/subsurface-image-repeat.c b/test/subsurface-image-repeat.c
index d58dd92c1..c741944fb 100644
--- a/test/subsurface-image-repeat.c
+++ b/test/subsurface-image-repeat.c
@@ -65,6 +65,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_image_repeat,
 	    "Tests source (image) clipping with repeat",
 	    "subsurface, image, repeat", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface-modify-child.c b/test/subsurface-modify-child.c
index 3a1e8ff05..ed9435616 100644
--- a/test/subsurface-modify-child.c
+++ b/test/subsurface-modify-child.c
@@ -93,6 +93,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_modify_child,
 	    "Tests source clipping with later modifications",
 	    "subsurface", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface-modify-parent.c b/test/subsurface-modify-parent.c
index 3d542d5c3..de16e7530 100644
--- a/test/subsurface-modify-parent.c
+++ b/test/subsurface-modify-parent.c
@@ -73,6 +73,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_modify_parent,
 	    "Tests source clipping with later modifications",
 	    "subsurface", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface-outside-target.c b/test/subsurface-outside-target.c
index 5e84a8405..ef91a2e1c 100644
--- a/test/subsurface-outside-target.c
+++ b/test/subsurface-outside-target.c
@@ -171,7 +171,7 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_outside_target,
 	    "Tests contents of subsurfaces outside target area",
 	    "subsurface, pad", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    (PAINT_SIZE + TARGET_SIZE) * N_PADS         - TARGET_SIZE,
             (PAINT_SIZE + TARGET_SIZE) * N_CONTENTS * 2 - TARGET_SIZE,
 	    NULL, draw)
diff --git a/test/subsurface-pad.c b/test/subsurface-pad.c
index 05e6d722b..1ac7a0e39 100644
--- a/test/subsurface-pad.c
+++ b/test/subsurface-pad.c
@@ -71,6 +71,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_pad,
 	    "Tests source clipping with pad",
 	    "subsurface, pad", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface-reflect.c b/test/subsurface-reflect.c
index e7ddbace3..517106df1 100644
--- a/test/subsurface-reflect.c
+++ b/test/subsurface-reflect.c
@@ -71,6 +71,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_reflect,
 	    "Tests source clipping with reflect",
 	    "subsurface, reflect", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface-repeat.c b/test/subsurface-repeat.c
index 84e25f4fb..596b97338 100644
--- a/test/subsurface-repeat.c
+++ b/test/subsurface-repeat.c
@@ -71,6 +71,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_repeat,
 	    "Tests source clipping with repeat",
 	    "subsurface, repeat", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface-scale.c b/test/subsurface-scale.c
index d5e2d9517..9ffd2c422 100644
--- a/test/subsurface-scale.c
+++ b/test/subsurface-scale.c
@@ -88,6 +88,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_scale,
 	    "Tests clipping of both source and destination using subsurfaces",
 	    "subsurface", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    200, 120,
 	    NULL, draw)
diff --git a/test/subsurface-similar-repeat.c b/test/subsurface-similar-repeat.c
index 5f17b490c..011f876e6 100644
--- a/test/subsurface-similar-repeat.c
+++ b/test/subsurface-similar-repeat.c
@@ -81,6 +81,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface_similar_repeat,
 	    "Tests source clipping through an intermediate with repeat",
 	    "subsurface, repeat", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    60, 60,
 	    NULL, draw)
diff --git a/test/subsurface.c b/test/subsurface.c
index d79d3d192..812776c0a 100644
--- a/test/subsurface.c
+++ b/test/subsurface.c
@@ -80,6 +80,6 @@ draw (cairo_t *cr, int width, int height)
 CAIRO_TEST (subsurface,
 	    "Tests clipping of both source and destination using subsurfaces",
 	    "subsurface", /* keywords */
-	    NULL, /* requirements */
+	    "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */
 	    100, 60,
 	    NULL, draw)