diff --git a/make.py b/make.py
index e3e1533..f91175d 100755
--- a/make.py
+++ b/make.py
@@ -2,22 +2,33 @@
 
 import os
 import shutil
+import subprocess
 
-PURGE = ["doctrees"]
 FORMATS = {
-    "html": "html",
-#    "xelatexpdf": "latex",
+    "html": "docs",
+    "latex": "doc",
 }
+INPUT = "in"
+OUTPUT = "out"
+
+
+def run(*arguments):
+    return subprocess.call(arguments)
+
+
+def main():
+    script_file = os.path.realpath(__file__)
+    project_directory = os.path.dirname(script_file)
+    os.chdir(project_directory)
+    shutil.rmtree(OUTPUT, ignore_errors=True)
+    for f, name in reversed(sorted(FORMATS.items())):
+        run("sphinx-build",
+            "-b", f,
+            "-c", os.curdir,
+            "-j", "2",
+            "-D", "latex_paper_size=a4",
+            INPUT, os.path.join(OUTPUT, name))
 
 
 if __name__ == "__main__":
-    file = os.path.realpath(__file__)
-    directory = os.path.dirname(file)
-    os.chdir(directory)
-    for build in PURGE + list(FORMATS.values()):
-        try:
-            shutil.rmtree(os.path.join("build", build))
-        except:
-            pass
-    for make in reversed(sorted(FORMATS.keys())):
-        os.system(" ".join(["make", make]))
+    main()