diff --git a/cmake/sample_defs/arch_build_custom.cmake b/cmake/sample_defs/arch_build_custom.cmake
index a7ebb1a6b..11a73d3cb 100644
--- a/cmake/sample_defs/arch_build_custom.cmake
+++ b/cmake/sample_defs/arch_build_custom.cmake
@@ -32,7 +32,7 @@ add_compile_options(
     -Wstrict-prototypes         # Warn about missing prototypes
     -Wwrite-strings             # Warn if not treating string literals as "const"
     -Wpointer-arith             # Warn about suspicious pointer operations
-    -Wcast-align                # Warn about casts that increase alignment requirements
+    -Wcast-align=strict         # Warn about casts that increase alignment requirements
     -Werror                     # Treat warnings as errors (code should be clean)
     -Wno-format-truncation      # Inhibit printf-style format truncation warnings
     -Wno-stringop-truncation    # Inhibit string operation truncation warnings