diff --git a/setup.py b/setup.py
index 5149e88..23f3c58 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,11 @@ Authors:
   - Tobias Oberstein (maintainer)
 """
 
-VERSIONFILE = os.path.join(os.path.dirname(os.path.realpath(__file__)), "scour", "__init__.py")
+old_path = os.getcwd()
+src_path = os.path.dirname(os.path.realpath(__file__))
+os.chdir(src_path)
+
+VERSIONFILE = "scour/__init__.py"
 verstrline = open(VERSIONFILE, "rt").read()
 VSRE = r"^__version__ = u['\"]([^'\"]*)['\"]"
 mo = re.search(VSRE, verstrline, re.M)
@@ -75,3 +79,5 @@ setup(
                  "Topic :: Utilities"],
     keywords='svg optimizer'
 )
+
+os.chdir(old_path)
\ No newline at end of file