diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..2ddf8e8
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include edhsmm/hsmm_core_x.pyx
\ No newline at end of file
diff --git a/edhsmm/__init__.py b/edhsmm/__init__.py
index 6213dbd..19adf97 100644
--- a/edhsmm/__init__.py
+++ b/edhsmm/__init__.py
@@ -3,4 +3,4 @@
 # An(other) implementation of Explicit
 # Duration HMM/HSMM in Python 3
 
-_version = "0.1.1"
\ No newline at end of file
+_version = "0.1.2"
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 5c05b7a..5f112a6 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 setup(
     name="edhsmm",
-    version="0.1.1",
+    version="0.1.2",
     description="An(other) implementation of Explicit Duration HMM/HSMM in Python 3",
     long_description=open("README.md", encoding="utf-8").read(),
     long_description_content_type="text/markdown",