diff --git a/src/cuda/api/launch_config_builder.hpp b/src/cuda/api/launch_config_builder.hpp
index 8d45a3b2..74a39a19 100644
--- a/src/cuda/api/launch_config_builder.hpp
+++ b/src/cuda/api/launch_config_builder.hpp
@@ -44,6 +44,8 @@ inline dimensions_t div_rounding_up(overall_dimensions_t overall_dims, block_dim
 
 } // namespace grid
 
+#ifndef NDEBUG
+
 namespace detail_ {
 
 static void validate_all_dimensions_compatibility(
@@ -58,6 +60,8 @@ static void validate_all_dimensions_compatibility(
 
 } // namespace detail_
 
+#endif // NDEBUG
+
 class launch_config_builder_t {
 protected:
 	memory::shared::size_t  get_dynamic_shared_memory_size(grid::block_dimensions_t block_dims) const