diff --git a/src/pystencils/backend/platforms/cuda.py b/src/pystencils/backend/platforms/cuda.py
index b8f5356ae7bbdb961773e122e2d6d377f0f7e45f..f146cfbfd3d3d4f106bc82571bd613798644f241 100644
--- a/src/pystencils/backend/platforms/cuda.py
+++ b/src/pystencils/backend/platforms/cuda.py
@@ -122,6 +122,11 @@ class CudaPlatform(GenericGpu):
                 case MathFunctions.Abs if dtype.width == 16:
                     cfunc = CFunction(" __habs", arg_types, dtype)
 
+                case _:
+                    raise MaterializationError(
+                        f"Cannot materialize call to function {func}"
+                    )
+
             call.function = cfunc
             return call
 
diff --git a/src/pystencils/backend/platforms/generic_gpu.py b/src/pystencils/backend/platforms/generic_gpu.py
index da8fa64f9f6d9e8de08b84bc169ae2442d0dec42..15df36cdd9cf416a8438f12816cbe00cfaeea204 100644
--- a/src/pystencils/backend/platforms/generic_gpu.py
+++ b/src/pystencils/backend/platforms/generic_gpu.py
@@ -19,7 +19,7 @@ if TYPE_CHECKING:
 class GenericGpu(Platform):
     @abstractmethod
     def materialize_iteration_space(
-        self, block: PsBlock, ispace: IterationSpace
+        self, body: PsBlock, ispace: IterationSpace
     ) -> tuple[PsBlock, GpuThreadsRange | None]:
         pass
 
diff --git a/src/pystencils/backend/platforms/platform.py b/src/pystencils/backend/platforms/platform.py
index cab4d0a7b0143eabd4e40602b45ef2f66592ee8c..2c7ee1c5f4750eac0375bc31a3f44b9eea50642b 100644
--- a/src/pystencils/backend/platforms/platform.py
+++ b/src/pystencils/backend/platforms/platform.py
@@ -27,7 +27,7 @@ class Platform(ABC):
 
     @abstractmethod
     def materialize_iteration_space(
-        self, block: PsBlock, ispace: IterationSpace
+        self, body: PsBlock, ispace: IterationSpace
     ) -> PsBlock | tuple[PsBlock, Any]:
         pass
 
diff --git a/tests/kernelcreation/test_functions.py b/tests/kernelcreation/test_functions.py
index e16201f819161fc611ec16b09dc98a7d7abf9445..cab1affcb3a344033458829ba28765a9a1ff8c48 100644
--- a/tests/kernelcreation/test_functions.py
+++ b/tests/kernelcreation/test_functions.py
@@ -7,7 +7,6 @@ from pystencils.backend.ast import dfs_preorder
 from pystencils.backend.ast.expressions import PsCall
 
 
-
 def unary_function(name, xp):
     return {
         "exp": (sp.exp, xp.exp),
diff --git a/tests/kernelcreation/test_iteration_slices.py b/tests/kernelcreation/test_iteration_slices.py
index 47f3b5fac2b868df746469f2d1a5c5aabdc12172..fee3544f88087917290a42ed76d8941577726759 100644
--- a/tests/kernelcreation/test_iteration_slices.py
+++ b/tests/kernelcreation/test_iteration_slices.py
@@ -62,6 +62,8 @@ def test_sliced_iteration():
         make_slice[3, 2:-2],
         make_slice[2:-2:2, ::3],
         make_slice[10:, :-5:2],
+        make_slice[-5:-1, -1],
+        make_slice[-3, -1]
     ],
 )
 def test_numerical_slices(gen_config: CreateKernelConfig, xp, islice):