diff --git a/reactive-banana-gi-gtk.cabal b/reactive-banana-gi-gtk.cabal
--- a/reactive-banana-gi-gtk.cabal
+++ b/reactive-banana-gi-gtk.cabal
@@ -1,5 +1,5 @@
 name: reactive-banana-gi-gtk
-version: 0.1.0.0
+version: 0.2.0.0
 cabal-version: >=1.10
 build-type: Simple
 license: PublicDomain
@@ -34,7 +34,7 @@
     main-is: Spec.hs
     build-depends:
         base >=4.9.1.0 && <4.10,
-        reactive-banana-gi-gtk >=0.1.0.0 && <0.2
+        reactive-banana-gi-gtk >=0.2.0.0 && <0.3
     default-language: Haskell2010
     hs-source-dirs: test
     ghc-options: -threaded -rtsopts -with-rtsopts=-N
diff --git a/src/Reactive/Banana/GI/Gtk.hs b/src/Reactive/Banana/GI/Gtk.hs
--- a/src/Reactive/Banana/GI/Gtk.hs
+++ b/src/Reactive/Banana/GI/Gtk.hs
@@ -11,8 +11,8 @@
     , signalEN
     , signalE0
     , signalE1
-    , propE
-    , propB
+    , attrE
+    , attrB
     , sink
     , AttrOpBehavior(..)
     ) where
@@ -143,7 +143,7 @@
 
 -- | Get an 'Reactive.Banana.Event' from
 -- a 'Data.GI.Base.Attributes.AttrLabelProxy' that produces one argument.
-propE
+attrE
     ::
         ( GObject self
         , AttrGetC info self attr result
@@ -152,12 +152,12 @@
     => self
     -> AttrLabelProxy (attr :: Symbol)
     -> MomentIO (Event result)
-propE self attr = do
+attrE self attr = do
     e <- signalE1 self (PropertyNotify attr)
     (const $ get self attr) `mapEventIO` e
 
--- | stepper on 'propE'
-propB
+-- | stepper on 'attrE'
+attrB
     ::
         ( GObject self
         , AttrGetC info self attr result
@@ -166,8 +166,8 @@
     => self
     -> AttrLabelProxy (attr :: Symbol)
     -> MomentIO (Behavior result)
-propB self attr = do
-    e <- propE self attr
+attrB self attr = do
+    e <- attrE self attr
     initV <- get self attr
     stepper initV e