diff --git a/regex.py b/regex.py
index 3baf5f5..f0d4156 100644
--- a/regex.py
+++ b/regex.py
@@ -81,7 +81,11 @@ def concat(*elements):
 
 	combined = []
 	for element in flattened:
-		if len(combined) > 0 and type(combined[-1]) == Literal and type(element) == Literal:
+		if type(element) == Literal and element.text == '':
+			# Drop empty literals
+			continue
+
+		elif len(combined) > 0 and type(combined[-1]) == Literal and type(element) == Literal:
 			# Combine two literals next to each other
 			# into one literal
 			previous = combined.pop()
@@ -90,7 +94,11 @@ def concat(*elements):
 		else:
 			combined.append(element)
 
-	if len(combined) == 1:
+	if len(combined) == 0:
+		# Empty regex, represent with empty literal
+		return lit('')
+
+	elif len(combined) == 1:
 		element, = combined
 		return element
 	else: