diff --git a/Michelangelo.cabal b/Michelangelo.cabal
--- a/Michelangelo.cabal
+++ b/Michelangelo.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.2.2.0
+version:             0.2.3.0
 
 -- A short (one-line) description of the package.
 synopsis:            OpenGL for dummies
diff --git a/src/Graphics/Michelangelo/Lenses.hs b/src/Graphics/Michelangelo/Lenses.hs
--- a/src/Graphics/Michelangelo/Lenses.hs
+++ b/src/Graphics/Michelangelo/Lenses.hs
@@ -51,3 +51,5 @@
 makeFields ''Mesh
 makeFields ''Entity
 makeFields ''ShaderProgram
+
+makePrisms ''UniformValue