diff --git a/CHANGELOG.md b/CHANGELOG.md
index dfc2fd5..cd9a38d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Added
+
+- Way to define your own magic function.
 
 ## [0.5.0] - 2021-05-22
 
diff --git a/noteql/__init__.py b/noteql/__init__.py
index 36e89df..545e307 100755
--- a/noteql/__init__.py
+++ b/noteql/__init__.py
@@ -25,6 +25,8 @@
 
 LOCAL_DB_MADE = False
 
+REGISTERED_MAGICS = False
+
 
 def get_engine(dburi):
     if not dburi:
@@ -110,7 +112,8 @@ def __init__(
         df_viewer=None,
         df_viewer_kw=None,
         datasette_url=None,
-        cell_magic_output=False
+        cell_magic_name=None,
+        cell_magic_output=False,
     ):
         self.schema = schema
         self.dburi = dburi
@@ -150,7 +153,17 @@ def __init__(
                 connection.execute("create schema if not exists {};".format(self.schema))
 
         self.ipython = get_ipython()
-        self.ipython.register_magics(Noteql)
+
+        global REGISTERED_MAGICS
+
+        if not REGISTERED_MAGICS:
+            if cell_magic_name:
+                Noteql.magics["line"][cell_magic_name] = Noteql.magics["line"].pop("nql")
+                Noteql.magics["cell"][cell_magic_name] = Noteql.magics["cell"].pop("nql")
+
+            self.ipython.register_magics(Noteql)
+            REGISTERED_MAGICS = True
+
         self.set()
 
     def tables(self):