diff --git a/bin/ufo2otf b/bin/ufo2otf
index fdfa2e6..bfbd9ca 100644
--- a/bin/ufo2otf
+++ b/bin/ufo2otf
@@ -25,7 +25,7 @@ from ufo2otf import FontError
 
 def diagnostics():
     e = FontError()
-    print e
+    print(e)
 
 def console():
     from sys import exit
diff --git a/ufo2otf/__init__.py b/ufo2otf/__init__.py
index 65f245e..7ade949 100644
--- a/ufo2otf/__init__.py
+++ b/ufo2otf/__init__.py
@@ -1,3 +1,3 @@
 import argparse
-from compilers import Compiler
-from diagnostics import diagnostics, FontError
+from .compilers import Compiler
+from .diagnostics import diagnostics, FontError
diff --git a/ufo2otf/compilers.py b/ufo2otf/compilers.py
index 2014bfd..f012639 100644
--- a/ufo2otf/compilers.py
+++ b/ufo2otf/compilers.py
@@ -4,7 +4,7 @@
 from os import mkdir
 from os.path import splitext, dirname, sep, join, exists, basename
 from subprocess import Popen
-from diagnostics import diagnostics, known_compilers, FontError
+from .diagnostics import diagnostics, known_compilers, FontError
 import codecs
 import re
 
diff --git a/ufo2otf/diagnostics.py b/ufo2otf/diagnostics.py
index 2271af2..eff7316 100644
--- a/ufo2otf/diagnostics.py
+++ b/ufo2otf/diagnostics.py
@@ -158,5 +158,5 @@ class FontError(Exception):
 if __name__ == "__main__":
     # This will print diagnostics to stdout
     e = FontError()
-    print e
+    print(e)