diff --git a/pylops/signalprocessing/_fourierradon2d_cuda.py b/pylops/signalprocessing/_fourierradon2d_cuda.py
index 56c14963..2a0d35ba 100755
--- a/pylops/signalprocessing/_fourierradon2d_cuda.py
+++ b/pylops/signalprocessing/_fourierradon2d_cuda.py
@@ -4,7 +4,7 @@
 from numba import cuda
 
 
-@cuda.jit()
+@cuda.jit
 def _radon_inner_2d_kernel(x, y, f, px, h, flim0, flim1, npx, nh):
     """Cuda kernels for FourierRadon2D operator
 
@@ -19,7 +19,7 @@ def _radon_inner_2d_kernel(x, y, f, px, h, flim0, flim1, npx, nh):
             y[ih, ifr] += x[ipx, ifr] * exp(-1j * 2 * pi * f[ifr] * px[ipx] * h[ih])
 
 
-@cuda.jit()
+@cuda.jit
 def _aradon_inner_2d_kernel(x, y, f, px, h, flim0, flim1, npx, nh):
     """Cuda kernels for FourierRadon2D operator
 
diff --git a/pylops/signalprocessing/_fourierradon3d_cuda.py b/pylops/signalprocessing/_fourierradon3d_cuda.py
index ffa923db..16f94f7e 100755
--- a/pylops/signalprocessing/_fourierradon3d_cuda.py
+++ b/pylops/signalprocessing/_fourierradon3d_cuda.py
@@ -4,7 +4,7 @@
 from numba import cuda
 
 
-@cuda.jit()
+@cuda.jit
 def _radon_inner_3d_kernel(x, y, f, py, px, hy, hx, flim0, flim1, npy, npx, nhy, nhx):
     """Cuda kernels for FourierRadon3D operator
 
@@ -22,7 +22,7 @@ def _radon_inner_3d_kernel(x, y, f, py, px, hy, hx, flim0, flim1, npy, npx, nhy,
                 )
 
 
-@cuda.jit()
+@cuda.jit
 def _aradon_inner_3d_kernel(x, y, f, py, px, hy, hx, flim0, flim1, npy, npx, nhy, nhx):
     """Cuda kernels for FourierRadon3D operator