diff --git a/EpiAware/src/latent-processes.jl b/EpiAware/src/latent-processes.jl
index b85a775eb..27b68ed0f 100644
--- a/EpiAware/src/latent-processes.jl
+++ b/EpiAware/src/latent-processes.jl
@@ -5,10 +5,10 @@ function default_rw_priors()
     )
 end
 
-@model function random_walk(n; latent_process_priors = default_rw_priors())
+@model function random_walk(n; kwargs...)
     ϵ_t ~ MvNormal(ones(n))
-    σ²_RW ~ latent_process_priors.var_RW_dist
-    init ~ latent_process_priors.init_rw_value_dist
+    σ²_RW ~ kwargs[:var_RW_dist]
+    init ~ kwargs[:init_rw_value_dist]
     σ_RW = sqrt(σ²_RW)
     rw = Vector{eltype(ϵ_t)}(undef, n)
 
diff --git a/EpiAware/src/models.jl b/EpiAware/src/models.jl
index 8d896de85..8b3e73064 100644
--- a/EpiAware/src/models.jl
+++ b/EpiAware/src/models.jl
@@ -9,7 +9,7 @@
     time_steps = epimodel.data.time_horizon
     @submodel latent_process, init, latent_process_aux = latent_process_obj.latent_process(
         time_steps;
-        latent_process_priors = latent_process_obj.latent_process_priors
+        latent_process_obj.latent_process_priors...
     )
 
     #Transform into infections
@@ -20,8 +20,8 @@
         y_t,
         I_t,
         epimodel::AbstractEpiModel;
-        observation_process_priors = observation_process_obj.observation_model_priors,
-        pos_shift = pos_shift
+        pos_shift = pos_shift,
+        observation_process_obj.observation_model_priors...
     )
 
     #Generate quantities
diff --git a/EpiAware/src/observation-processes.jl b/EpiAware/src/observation-processes.jl
index 3389a5cfd..34171c55b 100644
--- a/EpiAware/src/observation-processes.jl
+++ b/EpiAware/src/observation-processes.jl
@@ -6,14 +6,13 @@ end
         y_t,
         I_t,
         epimodel::AbstractEpiModel;
-        observation_process_priors = default_delay_obs_priors(),
-        pos_shift = 1e-6
+        kwargs...
 )
     #Parameters
-    neg_bin_cluster_factor ~ observation_process_priors.neg_bin_cluster_factor_prior
+    neg_bin_cluster_factor ~ kwargs[:neg_bin_cluster_factor_prior]
 
     #Predictive distribution
-    case_pred_dists = (epimodel.data.delay_kernel * I_t) .+ pos_shift .|>
+    case_pred_dists = (epimodel.data.delay_kernel * I_t) .+ kwargs[:pos_shift] .|>
                       μ -> mean_cc_neg_bin(μ, neg_bin_cluster_factor)
 
     #Likelihood
diff --git a/EpiAware/test/test_latent-processes.jl b/EpiAware/test/test_latent-processes.jl
index 5541e515a..867b90640 100644
--- a/EpiAware/test/test_latent-processes.jl
+++ b/EpiAware/test/test_latent-processes.jl
@@ -2,7 +2,8 @@
 @testitem "Testing random_walk against theoretical properties" begin
     using DynamicPPL, Turing
     n = 5
-    model = EpiAware.random_walk(n)
+    priors = EpiAware.default_rw_priors()
+    model = EpiAware.random_walk(n; priors...)
     fixed_model = fix(model, (σ²_RW = 1.0, init_rw_value = 0.0)) #Fixing the standard deviation of the random walk process
     n_samples = 1000
     samples_day_5 = sample(fixed_model, Prior(), n_samples) |>
diff --git a/EpiAware/test/test_observation-processes.jl b/EpiAware/test/test_observation-processes.jl
index 1386d3bb5..ae239ab70 100644
--- a/EpiAware/test/test_observation-processes.jl
+++ b/EpiAware/test/test_observation-processes.jl
@@ -8,14 +8,15 @@
     data = EpiData([0.2, 0.3, 0.5], [1.0], 0.8, 3, exp)
     epimodel = DirectInfections(data)
     # Set up priors
-    observation_process_priors = default_delay_obs_priors()
+    priors = default_delay_obs_priors()
 
     # Call the function
     mdl = EpiAware.delay_observations(
         missing,
         I_t,
         epimodel;
-        observation_process_priors = observation_process_priors
+        pos_shift = 1e-6,
+        priors...
     )
     fix_mdl = fix(mdl, neg_bin_cluster_factor = 0.00001) # Effectively Poisson sampling