diff --git a/jedi/evaluate/sys_path.py b/jedi/evaluate/sys_path.py
index 7cfbd57b..306fb16e 100644
--- a/jedi/evaluate/sys_path.py
+++ b/jedi/evaluate/sys_path.py
@@ -239,8 +239,8 @@ def _get_buildout_scripts(module_path):
                 firstline = f.readline()
                 if firstline.startswith('#!') and 'python' in firstline:
                     extra_module_paths.append(filepath)
-        except IOError as e:
-            # either permission error or race cond. because file got deleted
+        except (UnicodeDecodeError, IOError) as e:
+            # Probably a binary file; permission error or race cond. because file got deleted
             # ignore
             debug.warning(unicode(e))
             continue
diff --git a/test/test_evaluate/buildout_project/bin/binary_file b/test/test_evaluate/buildout_project/bin/binary_file
new file mode 100644
index 00000000..f1ad7558
--- /dev/null
+++ b/test/test_evaluate/buildout_project/bin/binary_file
@@ -0,0 +1 @@
+‰PNG