diff --git a/build.py b/build.py
index 8e2404a..29aece8 100644
--- a/build.py
+++ b/build.py
@@ -14,7 +14,7 @@ def build(setup_kwargs):
   ext = Extension(
     name = "pyslalib.slalib",
     include_dirs = ["."],
-    sources = list(set(["slalib.pyf"]) & set(glob.glob("*.f")) & set(glob.glob("*.F")) - set(glob.glob("*-f2pywrappers.f")))
+    sources = ["slalib.pyf"] + list(set(glob.glob("*.f")) - set(glob.glob("*-f2pywrappers.f"))) + glob.glob("*.F")
   )
 
   setup_kwargs.update({
diff --git a/pyproject.toml b/pyproject.toml
index c119d68..07c1d1f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyslalib"
-version = "1.0.8"
+version = "1.0.9"
 description = "f2py and numpy based wrappers for SLALIB"
 authors = [
   "Jashandeep Sohi <jsohi@lco.global>",