diff --git a/drizzle/dodrizzle.py b/drizzle/dodrizzle.py
index 5e6ec21..7e19c19 100644
--- a/drizzle/dodrizzle.py
+++ b/drizzle/dodrizzle.py
@@ -115,7 +115,7 @@ def dodrizzle(insci, input_wcs, inwht,
         names are: "square", "turbo", "point", "gaussian", "lanczos2",
         and "lanczos3".
 
-        .. warn::
+        .. warning::
             The "gaussian" and "lanczos2/3" kernels **DO NOT** conserve flux.
 
     fillval: str, optional
diff --git a/drizzle/drizzle.py b/drizzle/drizzle.py
index 587e499..37c8c3f 100644
--- a/drizzle/drizzle.py
+++ b/drizzle/drizzle.py
@@ -63,7 +63,7 @@ def __init__(self, infile="", outwcs=None,
             names are: "square", "turbo", "point", "gaussian", "lanczos2",
             and "lanczos3".
 
-            .. warn::
+            .. warning::
               The "gaussian" and "lanczos2/3" kernels **DO NOT** conserve flux.
 
         fillval : str, otional