diff --git a/Project.toml b/Project.toml
index 909be870f..21d501e9f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "DynamicPPL"
 uuid = "366bfd00-2699-11ea-058f-f148b4cae6d8"
-version = "0.31.3"
+version = "0.31.4"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
@@ -30,6 +30,7 @@ ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 EnzymeCore = "f151be2c-9106-41f4-ab19-57ee4f262869"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 MCMCChains = "c7f686f2-ff18-58e9-bc7b-31028e88f75d"
+Mooncake = "da2b9cff-9c12-43a0-ae48-6db2b0edb7d6"
 ZygoteRules = "700de1a5-db45-46bc-99cf-38207098b444"
 
 [extensions]
@@ -37,6 +38,7 @@ DynamicPPLChainRulesCoreExt = ["ChainRulesCore"]
 DynamicPPLEnzymeCoreExt = ["EnzymeCore"]
 DynamicPPLForwardDiffExt = ["ForwardDiff"]
 DynamicPPLMCMCChainsExt = ["MCMCChains"]
+DynamicPPLMooncakeExt = ["Mooncake"]
 DynamicPPLZygoteRulesExt = ["ZygoteRules"]
 
 [compat]
@@ -58,6 +60,7 @@ LogDensityProblems = "2"
 LogDensityProblemsAD = "1.7.0"
 MCMCChains = "6"
 MacroTools = "0.5.6"
+Mooncake = "0.4.59"
 OrderedCollections = "1"
 Random = "1.6"
 Requires = "1"
diff --git a/ext/DynamicPPLMooncakeExt.jl b/ext/DynamicPPLMooncakeExt.jl
new file mode 100644
index 000000000..b86d807bc
--- /dev/null
+++ b/ext/DynamicPPLMooncakeExt.jl
@@ -0,0 +1,9 @@
+module DynamicPPLMooncakeExt
+
+using DynamicPPL: DynamicPPL, istrans
+using Mooncake: Mooncake
+
+# This is purely an optimisation.
+Mooncake.@zero_adjoint Mooncake.DefaultCtx Tuple{typeof(istrans),Vararg}
+
+end # module
diff --git a/test/Project.toml b/test/Project.toml
index 0d247c3ec..4f12f2015 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -45,7 +45,7 @@ LogDensityProblems = "2"
 LogDensityProblemsAD = "1.7.0"
 MCMCChains = "6.0.4"
 MacroTools = "0.5.6"
-Mooncake = "0.4.50"
+Mooncake = "0.4.59"
 ReverseDiff = "1"
 StableRNGs = "1"
 Tracker = "0.2.23"
diff --git a/test/ext/DynamicPPLMooncakeExt.jl b/test/ext/DynamicPPLMooncakeExt.jl
new file mode 100644
index 000000000..986057da0
--- /dev/null
+++ b/test/ext/DynamicPPLMooncakeExt.jl
@@ -0,0 +1,5 @@
+@testset "DynamicPPLMooncakeExt" begin
+    Mooncake.TestUtils.test_rule(
+        StableRNG(123456), istrans, VarInfo(); unsafe_perturb=true, interface_only=true
+    )
+end
diff --git a/test/runtests.jl b/test/runtests.jl
index dbfa319b0..a4fdabf22 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -13,6 +13,7 @@ using LogDensityProblems, LogDensityProblemsAD
 using MacroTools
 using MCMCChains
 using Mooncake: Mooncake
+using StableRNGs
 using Tracker
 using ReverseDiff
 using Zygote
@@ -77,6 +78,7 @@ include("test_util.jl")
 
         @testset "ad" begin
             include("ext/DynamicPPLForwardDiffExt.jl")
+            include("ext/DynamicPPLMooncakeExt.jl")
             include("ad.jl")
         end