diff --git a/ext/TensorKitEnzymeExt/indexmanipulations.jl b/ext/TensorKitEnzymeExt/indexmanipulations.jl
index 0adbb0600..e93c06dac 100644
--- a/ext/TensorKitEnzymeExt/indexmanipulations.jl
+++ b/ext/TensorKitEnzymeExt/indexmanipulations.jl
@@ -148,3 +148,24 @@ function EnzymeRules.reverse(
     end
     return (nothing, nothing)
 end
+
+function EnzymeRules.forward(
+        config::EnzymeRules.FwdConfigWidth{1},
+        func::Const{typeof(flip)},
+        ::Type{RT},
+        t::Annotation{<:AbstractTensorMap},
+        inds::Annotation;
+        inv::Bool = false,
+    ) where {RT}
+    t′ = flip(t.val, inds.val; inv)
+    dt′ = !isa(t, Const) ? flip(t.dval, inds.val; inv) : make_zero(t.val)
+    if EnzymeRules.needs_primal(config) && EnzymeRules.needs_shadow(config)
+        return Duplicated(t′, dt′)
+    elseif EnzymeRules.needs_primal(config)
+        return t′
+    elseif EnzymeRules.needs_shadow(config)
+        return dt′
+    else
+        return nothing
+    end
+end
diff --git a/test/enzyme-indexmanipulations-flip-twist/flip.jl b/test/enzyme-indexmanipulations-flip-twist/flip.jl
index d410673e4..e2de670fc 100644
--- a/test/enzyme-indexmanipulations-flip-twist/flip.jl
+++ b/test/enzyme-indexmanipulations-flip-twist/flip.jl
@@ -6,19 +6,22 @@ using Random
 spacelist = ad_spacelist(fast_tests)
 eltypes = (Float64, ComplexF64)
 
-if !Sys.iswindows() && VERSION > v"1.11.0-rc"
-    @timedtestset "Enzyme - Index Manipulations (flip):" begin
-        @timedtestset "$(TensorKit.type_repr(sectortype(eltype(V)))) ($T) TA ($TA)" for V in spacelist, T in eltypes, TA in (Duplicated,)
-            atol = default_tol(T)
-            rtol = default_tol(T)
-            has_braiding = BraidingStyle(sectortype(eltype(V))) isa HasBraiding
-            if has_braiding
-                A = randn(T, V[1] ⊗ V[2] ← (V[3] ⊗ V[4] ⊗ V[5])')
-                EnzymeTestUtils.test_reverse(flip, TA, (A, TA), (1, Const); atol, rtol, fkwargs = (inv = false,))
-                EnzymeTestUtils.test_reverse(flip, TA, (A, TA), [1, 3]; atol, rtol, fkwargs = (inv = true,))
-                EnzymeTestUtils.test_reverse(flip, TA, (A, TA), (1, Const); atol, rtol)
-                EnzymeTestUtils.test_reverse(flip, TA, (A, TA), ([1, 3], Const); atol, rtol)
-            end
+@timedtestset "Enzyme - Index Manipulations (flip):" begin
+    @timedtestset "$(TensorKit.type_repr(sectortype(eltype(V)))) ($T) TA ($TA)" for V in spacelist, T in eltypes, TA in (Duplicated,)
+        atol = default_tol(T)
+        rtol = default_tol(T)
+        has_braiding = BraidingStyle(sectortype(eltype(V))) isa HasBraiding
+        if has_braiding
+            A = randn(T, V[1] ⊗ V[2] ← (V[3] ⊗ V[4] ⊗ V[5])')
+            EnzymeTestUtils.test_reverse(flip, TA, (A, TA), (1, Const); atol, rtol, fkwargs = (inv = false,))
+            EnzymeTestUtils.test_reverse(flip, TA, (A, TA), ([1, 3], Const); atol, rtol, fkwargs = (inv = true,))
+            EnzymeTestUtils.test_reverse(flip, TA, (A, TA), (1, Const); atol, rtol)
+            EnzymeTestUtils.test_reverse(flip, TA, (A, TA), ([1, 3], Const); atol, rtol)
+
+            EnzymeTestUtils.test_forward(flip, TA, (A, TA), (1, Const); atol, rtol, fkwargs = (inv = false,))
+            EnzymeTestUtils.test_forward(flip, TA, (A, TA), ([1, 3], Const); atol, rtol, fkwargs = (inv = true,))
+            EnzymeTestUtils.test_forward(flip, TA, (A, TA), (1, Const); atol, rtol)
+            EnzymeTestUtils.test_forward(flip, TA, (A, TA), ([1, 3], Const); atol, rtol)
         end
     end
 end