diff --git a/.gitignore b/.gitignore
index c548dcc..e91945c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,9 @@ var/
 pip-log.txt
 pip-delete-this-directory.txt
 
+# VIM swp files
+*.swp
+
 # Unit test / coverage reports
 htmlcov/
 .tox/
diff --git a/permanentbis/__init__.py b/permanentbis/__init__.py
deleted file mode 100644
index f7354ab..0000000
--- a/permanentbis/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-from permanentbis import permanent
diff --git a/setup.py b/setup.py
index 830f9b4..6fb0966 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 setup(
     ext_modules=[
         Extension(
-            'permanentbis.permanent', ['./src/permanent.c'],
+            'permanentbis', ['./src/permanent.c'],
             extra_compile_args=["-Ofast", "-march=native"],
             include_dirs=[numpy.get_include()]),
     ],
diff --git a/src/npy_util.h b/src/npy_util.h
index ecad18c..bbec383 100644
--- a/src/npy_util.h
+++ b/src/npy_util.h
@@ -50,7 +50,7 @@ void complex_inc(npy_complex128 *a, npy_complex128 b) {
       ((double *)a)[1] = cimag(tmp);
       return; 
     #else /* !defined(_MSC_VER) */
-      *a *= b;
+      *a += b;
     #endif
     return;
 }
diff --git a/src/permanent.c b/src/permanent.c
index e9531a4..f251613 100644
--- a/src/permanent.c
+++ b/src/permanent.c
@@ -10,7 +10,7 @@ static PyObject *permanent(PyObject *self, PyObject *args);
 
 // Method list
 static PyMethodDef methods[] = {                                
-  { "permanentbis", permanent, METH_VARARGS, "Computes the permanent of a numpy using the most appropriate method available"},
+  { "permanent", permanent, METH_VARARGS, "Computes the permanent of a numpy using the most appropriate method available"},
   { NULL, NULL, 0, NULL } // Sentinel
 };
 
@@ -18,17 +18,17 @@ static PyMethodDef methods[] = {
 #if PY_MAJOR_VERSION >= 3
 static struct PyModuleDef cModPyDem =
 {
-    PyModuleDef_HEAD_INIT,
-    "permanentbis", "Computes the permanent of a numpy using the most appropriate method available",
-    -1,
-    methods
+  PyModuleDef_HEAD_INIT,
+  "permanentbis", "Computes the permanent of a numpy using the most appropriate method available",
+  -1,
+  methods
 };
 
 PyMODINIT_FUNC
-PyInit_permanent(void)
+PyInit_permanentbis(void)
 {
-    import_array();
-    return PyModule_Create(&cModPyDem);
+  import_array();
+  return PyModule_Create(&cModPyDem);
 }
 
 #else
diff --git a/tests/test_permanent.py b/tests/test_permanent.py
index eac0dee..b79bb91 100644
--- a/tests/test_permanent.py
+++ b/tests/test_permanent.py
@@ -1,11 +1,12 @@
 import numpy as np
-from permanentbis.permanent import permanent
+from permanentbis import permanent
 import pytest
 
 
 def test_permanent():
     """ Test that basic functions work right """
     m = np.eye(10, dtype=complex)
+    print(permanent(m))
     assert permanent(m) == 1
     m = np.zeros((10, 10), dtype=complex)
     assert permanent(m) == 0