diff --git a/API/README.md b/API/README.md
index ae7d02f..629908e 100644
--- a/API/README.md
+++ b/API/README.md
@@ -67,7 +67,7 @@ queries, or the logical AND of the filters.
 
 # Examples
 1. Example of a general, non-fielded query. This will search all public fields and return codes which contain the phrase "machine learning".
-https://ascl.net/api/search/?q="machine learning")
+https://ascl.net/api/search/?q="machine%20learning")
 
 
 2. Example of a query with a filter query attached. This will search for public fields with the phrase "machine learning" whose time updated is greater than X