diff --git a/src/schemes/boundary/open_boundary/lastiwka.jl b/src/schemes/boundary/open_boundary/lastiwka.jl
index e12d521ad..e9ce5d87d 100644
--- a/src/schemes/boundary/open_boundary/lastiwka.jl
+++ b/src/schemes/boundary/open_boundary/lastiwka.jl
@@ -1,7 +1,7 @@
 struct BoundaryModelLastiwka
-    extra_polate_reference_values::Bool
-    function BoundaryModelLastiwka(; extra_polate_reference_values::Bool=true)
-        return new{}(extra_polate_reference_values)
+    extrapolate_reference_values::Bool
+    function BoundaryModelLastiwka(; extrapolate_reference_values::Bool=true)
+        return new{}(extrapolate_reference_values)
     end
 end
 
@@ -10,7 +10,7 @@ end
     (; density, pressure, cache, flow_direction, sound_speed,
     reference_velocity, reference_pressure, reference_density) = system
 
-    if boundary_model.extra_polate_reference_values
+    if boundary_model.extrapolate_reference_values
         (; prescribed_pressure, prescribed_velocity, prescribed_density) = cache
 
         @trixi_timeit timer() "interpolate and correct values" begin
diff --git a/src/schemes/boundary/open_boundary/tafuni.jl b/src/schemes/boundary/open_boundary/tafuni.jl
index 0e3818caa..59c50e52b 100644
--- a/src/schemes/boundary/open_boundary/tafuni.jl
+++ b/src/schemes/boundary/open_boundary/tafuni.jl
@@ -70,7 +70,7 @@ function interpolate_values!(system, v_ode, u_ode, semi, t; prescribed_density=f
                 kernel_value = smoothing_kernel(fluid_system, distance)
                 grad_kernel = smoothing_kernel_grad(fluid_system, pos_diff, distance)
 
-                L, R = correction_arrys(kernel_value, grad_kernel, pos_diff, rho_b, m_b)
+                L, R = correction_arrays(kernel_value, grad_kernel, pos_diff, rho_b, m_b)
 
                 correction_matrix += L
 
@@ -126,7 +126,7 @@ function interpolate_values!(system, v_ode, u_ode, semi, t; prescribed_density=f
     return system
 end
 
-function correction_arrys(W_ab, grad_W_ab, pos_diff::SVector{3}, rho_b, m_b)
+function correction_arrays(W_ab, grad_W_ab, pos_diff::SVector{3}, rho_b, m_b)
     x_ab = pos_diff[1]
     y_ab = pos_diff[2]
     z_ab = pos_diff[3]
@@ -147,7 +147,7 @@ function correction_arrys(W_ab, grad_W_ab, pos_diff::SVector{3}, rho_b, m_b)
     return L, R
 end
 
-function correction_arrys(W_ab, grad_W_ab, pos_diff::SVector{2}, rho_b, m_b)
+function correction_arrays(W_ab, grad_W_ab, pos_diff::SVector{2}, rho_b, m_b)
     x_ab = pos_diff[1]
     y_ab = pos_diff[2]