diff --git a/powerline/bindings/zsh/__init__.py b/powerline/bindings/zsh/__init__.py
index 268a3ac9..a7795bbd 100644
--- a/powerline/bindings/zsh/__init__.py
+++ b/powerline/bindings/zsh/__init__.py
@@ -37,17 +37,11 @@ class Args(object):
 
 	@property
 	def config(self):
-		try:
-			return get_var_config('POWERLINE_CONFIG')
-		except IndexError:
-			return None
+		return get_var_config('POWERLINE_CONFIG')
 
 	@property
 	def theme_option(self):
-		try:
-			return get_var_config('POWERLINE_THEME_CONFIG')
-		except IndexError:
-			return None
+		return get_var_config('POWERLINE_THEME_CONFIG')
 
 	@property
 	def config_path(self):