diff --git a/sumpy/__init__.py b/exafmm/__init__.py
similarity index 100%
rename from sumpy/__init__.py
rename to exafmm/__init__.py
diff --git a/sumpy/fmm.py b/exafmm/fmm.py
similarity index 100%
rename from sumpy/fmm.py
rename to exafmm/fmm.py
diff --git a/sumpy/fmm2.py b/exafmm/fmm2.py
similarity index 100%
rename from sumpy/fmm2.py
rename to exafmm/fmm2.py
diff --git a/sumpy/tree.py b/exafmm/tree.py
similarity index 100%
rename from sumpy/tree.py
rename to exafmm/tree.py
diff --git a/setup.py b/setup.py
index c94358bd808ffc864cdd79fdec5448209a4d49e6..2e62c1672722bea34ae28e2e8a546b049de976f9 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ except ImportError:
     # 2.x
     from distutils.command.build_py import build_py
 
-setup(name="sumpy",
+setup(name="exafmm",
       version="2011.1",
       description="Fast summation in Python",
       long_description="""