diff --git a/projects/lxml/fuzz_schematron.py b/projects/lxml/fuzz_schematron.py
index e9d7a540c..146ff1871 100644
--- a/projects/lxml/fuzz_schematron.py
+++ b/projects/lxml/fuzz_schematron.py
@@ -16,24 +16,24 @@
 
 import atheris
 import sys
-import io
 
-with atheris.instrument_imports():
-  from lxml import etree as et
+import io
+from lxml import etree as et
 
 
 def TestOneInput(data):
   """Targets Schematron. Currently validates, but we should add more APIs"""
   try:
     schema_raw = et.parse(io.BytesIO(data))
-    valid_tree = et.parse(io.BytesIO('<AAA><BBB/><CCC/></AAA>'))
+    valid_tree = et.parse(io.BytesIO(b'<AAA><BBB/><CCC/></AAA>'))
     
-    schema = etree.Schematron(schema_raw)
+    schema = et.Schematron(schema_raw)
     schame.validate(valid_tree)
   except et.LxmlError:
     None
 
 def main():
+  atheris.instrument_all()
   atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
   atheris.Fuzz()
 
diff --git a/projects/lxml/fuzz_xmlschema.py b/projects/lxml/fuzz_xmlschema.py
index ddf6c28fc..3947e5e9b 100644
--- a/projects/lxml/fuzz_xmlschema.py
+++ b/projects/lxml/fuzz_xmlschema.py
@@ -26,9 +26,9 @@ def TestOneInput(data):
   """Targets XML schema validation. More APIs should be added"""
   try:
     schema_raw = et.parse(io.BytesIO(data))
-    valid_tree = et.parse(io.BytesIO('<a><b></b></a>'))
+    valid_tree = et.parse(io.BytesIO(b'<a><b></b></a>'))
     
-    schema = etree.XMLSchema(schema_raw)
+    schema = et.XMLSchema(schema_raw)
     schame.validate(valid_tree)
   except et.LxmlError:
     None
diff --git a/projects/lxml/fuzz_xslt.py b/projects/lxml/fuzz_xslt.py
index 1b3f3ca81..894cfa10f 100644
--- a/projects/lxml/fuzz_xslt.py
+++ b/projects/lxml/fuzz_xslt.py
@@ -25,9 +25,9 @@ def TestOneInput(data):
   """Targets XSLT. More APIs on the st object should be added"""
   try:
     style = et.parse(io.BytesIO(data))
-    valid_tree = et.parse(io.BytesIO('<a><b>B</b><c>C</c></a>'))
+    valid_tree = et.parse(io.BytesIO(b'<a><b>B</b><c>C</c></a>'))
     
-    st = etree.XSLT(style)
+    st = et.XSLT(style)
     res = st(valid_tree)
   except et.LxmlError:
     None