diff --git a/src/Interpolations.jl b/src/Interpolations.jl
index ad119bdc..d87a85f1 100644
--- a/src/Interpolations.jl
+++ b/src/Interpolations.jl
@@ -282,14 +282,11 @@ end
 
 @parallel_indices (i, j, k) function _velocity2vertex!(Vx_v, Vy_v, Vz_v, Vx, Vy, Vz)
     Vx_v[i, j, k] =
-        0.25 *
-        (Vx[i, j, k] + Vx[i, j + 1, k] + Vx[i, j, k + 1] + Vx[i, j + 1, k + 1])
+        0.25 * (Vx[i, j, k] + Vx[i, j + 1, k] + Vx[i, j, k + 1] + Vx[i, j + 1, k + 1])
     Vy_v[i, j, k] =
-        0.25 *
-        (Vy[i, j, k] + Vy[i + 1, j, k] + Vy[i, j, k + 1] + Vy[i + 1, j, k + 1])
+        0.25 * (Vy[i, j, k] + Vy[i + 1, j, k] + Vy[i, j, k + 1] + Vy[i + 1, j, k + 1])
     Vz_v[i, j, k] =
-        0.25 *
-        (Vz[i, j, k] + Vz[i, j + 1, k] + Vz[i + 1, j, k] + Vz[i + 1, j + 1, k])
+        0.25 * (Vz[i, j, k] + Vz[i, j + 1, k] + Vz[i + 1, j, k] + Vz[i + 1, j + 1, k])
     return nothing
 end
 
@@ -318,4 +315,4 @@ end
     Vx_c[i, j, k] = (Vx[i, j + 1] + Vx[i + 1, j + 1]) / 2
     Vy_c[i, j, k] = (Vy[i + 1, j] + Vy[i + 1, j + 1]) / 2
     return nothing
-end
\ No newline at end of file
+end
diff --git a/src/common.jl b/src/common.jl
index 97f2d4b8..18117e31 100644
--- a/src/common.jl
+++ b/src/common.jl
@@ -61,7 +61,8 @@ include("particles/subgrid_diffusion.jl")
 export subgrid_characteristic_time!
 
 include("Interpolations.jl")
-export vertex2center!, center2vertex!, temperature2center!, velocity2vertex!, velocity2center!
+export vertex2center!,
+    center2vertex!, temperature2center!, velocity2vertex!, velocity2center!
 
 include("advection/weno5.jl")
 export WENO_advection!
diff --git a/src/ext/AMDGPU/2D.jl b/src/ext/AMDGPU/2D.jl
index ef9c24b9..e3772eb0 100644
--- a/src/ext/AMDGPU/2D.jl
+++ b/src/ext/AMDGPU/2D.jl
@@ -263,7 +263,7 @@ end
 
 function JR2D.velocity2center!(Vx_c::T, Vy_c::T, Vx::T, Vy::T) where {T<:ROCArray}
     velocity2center!(Vx_c, Vy_c, Vx, Vy)
-    nothing
+    return nothing
 end
 
 function JR2D.velocity2displacement!(
diff --git a/src/ext/AMDGPU/3D.jl b/src/ext/AMDGPU/3D.jl
index 8e3fc50c..ddc8432b 100644
--- a/src/ext/AMDGPU/3D.jl
+++ b/src/ext/AMDGPU/3D.jl
@@ -266,8 +266,10 @@ function JR3D.velocity2vertex!(
     return nothing
 end
 
-function JR3D.velocity2center!(Vx_c::T, Vy_c::T, Vz_c::T, Vx::T, Vy::T, Vz::T) where {T<:ROCArray}
-    velocity2center!(Vx_c, Vy_c, Vz_c, Vx, Vy, Vz)
+function JR3D.velocity2center!(
+    Vx_c::T, Vy_c::T, Vz_c::T, Vx::T, Vy::T, Vz::T
+) where {T<:ROCArray}
+    return velocity2center!(Vx_c, Vy_c, Vz_c, Vx, Vy, Vz)
 end
 
 function JR3D.velocity2displacement!(
diff --git a/src/ext/CUDA/2D.jl b/src/ext/CUDA/2D.jl
index 4978930f..f447d85c 100644
--- a/src/ext/CUDA/2D.jl
+++ b/src/ext/CUDA/2D.jl
@@ -245,7 +245,7 @@ end
 
 function JR2D.velocity2center!(Vx_c::T, Vy_c::T, Vx::T, Vy::T) where {T<:CuArray}
     velocity2center!(Vx_c, Vy_c, Vx, Vy)
-    nothing
+    return nothing
 end
 
 function JR2D.velocity2vertex!(
diff --git a/src/ext/CUDA/3D.jl b/src/ext/CUDA/3D.jl
index 23c45836..9eb49eee 100644
--- a/src/ext/CUDA/3D.jl
+++ b/src/ext/CUDA/3D.jl
@@ -261,13 +261,17 @@ function JR3D.center2vertex!(
     return center2vertex!(vertex_yz, vertex_xz, vertex_xy, center_yz, center_xz, center_xy)
 end
 
-function JR3D.velocity2vertex!(Vx_v::T, Vy_v::T, Vz_v::T, Vx::T, Vy::T, Vz::T) where {T<:CuArray}
+function JR3D.velocity2vertex!(
+    Vx_v::T, Vy_v::T, Vz_v::T, Vx::T, Vy::T, Vz::T
+) where {T<:CuArray}
     velocity2vertex!(Vx_v, Vy_v, Vz_v, Vx, Vy, Vz)
     return nothing
 end
 
-function JR3D.velocity2center!(Vx_c::T, Vy_c::T, Vz_c::T, Vx::T, Vy::T, Vz::T) where {T<:CuArray}
-    velocity2center!(Vx_c, Vy_c, Vz_c, Vx, Vy, Vz)
+function JR3D.velocity2center!(
+    Vx_c::T, Vy_c::T, Vz_c::T, Vx::T, Vy::T, Vz::T
+) where {T<:CuArray}
+    return velocity2center!(Vx_c, Vy_c, Vz_c, Vx, Vy, Vz)
 end
 
 function JR3D.velocity2displacement!(::CUDABackendTrait, stokes::JustRelax.StokesArrays, dt)