diff --git a/src/lib/array.jl b/src/lib/array.jl
index c23da62d1..c77e91687 100644
--- a/src/lib/array.jl
+++ b/src/lib/array.jl
@@ -213,6 +213,11 @@ end
   end
 end
 
+function _forward(cx::Context, ::typeof(norm), x::AbstractArray, p::Real = 2)
+  fallback = (x, p) -> sum(abs.(x).^p .+ eps(0f0))^(1/p) # avoid d(sqrt(x))/dx == Inf at 0
+  _forward(cx, fallback, x, p)
+end
+
 # LinAlg Matrix Types
 # ===================