diff --git a/strings/split.py b/strings/split.py
index ed194ec69c2f..571cbe89119b 100644
--- a/strings/split.py
+++ b/strings/split.py
@@ -20,6 +20,8 @@ def split(string: str, separator: str = " ") -> list:
     """
 
     split_words = []
+    if(len(separator)>1):
+        raise ValueError("Separator is for single character only")
 
     last_index = 0
     for index, char in enumerate(string):