diff --git a/s3tests/functional/test_s3.py b/s3tests/functional/test_s3.py
index 3769bb9..4af99a0 100644
--- a/s3tests/functional/test_s3.py
+++ b/s3tests/functional/test_s3.py
@@ -877,6 +877,7 @@ def test_object_set_get_unicode_metadata():
 @attr(method='put')
 @attr(operation='metadata write/re-write')
 @attr(assertion='non-UTF-8 values detected, but preserved')
+@attr('fails_strict_rfc2616')
 def test_object_set_get_non_utf8_metadata():
     bucket = get_new_bucket()
     key = boto.s3.key.Key(bucket)
@@ -904,6 +905,7 @@ def _set_get_metadata_unreadable(metadata, bucket=None):
 @attr(method='put')
 @attr(operation='metadata write')
 @attr(assertion='non-priting prefixes noted and preserved')
+@attr('fails_strict_rfc2616')
 def test_object_set_get_metadata_empty_to_unreadable_prefix():
     metadata = '\x04w'
     got = _set_get_metadata_unreadable(metadata)
@@ -914,6 +916,7 @@ def test_object_set_get_metadata_empty_to_unreadable_prefix():
 @attr(method='put')
 @attr(operation='metadata write')
 @attr(assertion='non-priting suffixes noted and preserved')
+@attr('fails_strict_rfc2616')
 def test_object_set_get_metadata_empty_to_unreadable_suffix():
     metadata = 'h\x04'
     got = _set_get_metadata_unreadable(metadata)
@@ -934,6 +937,7 @@ def test_object_set_get_metadata_empty_to_unreadable_infix():
 @attr(method='put')
 @attr(operation='metadata re-write')
 @attr(assertion='non-priting prefixes noted and preserved')
+@attr('fails_strict_rfc2616')
 def test_object_set_get_metadata_overwrite_to_unreadable_prefix():
     metadata = '\x04w'
     got = _set_get_metadata_unreadable(metadata)
@@ -947,6 +951,7 @@ def test_object_set_get_metadata_overwrite_to_unreadable_prefix():
 @attr(method='put')
 @attr(operation='metadata re-write')
 @attr(assertion='non-priting suffixes noted and preserved')
+@attr('fails_strict_rfc2616')
 def test_object_set_get_metadata_overwrite_to_unreadable_suffix():
     metadata = 'h\x04'
     got = _set_get_metadata_unreadable(metadata)