diff --git a/tests/scripts/components-compiler.sh b/tests/scripts/components-compiler.sh
index d69d529..2864087 100644
--- a/tests/scripts/components-compiler.sh
+++ b/tests/scripts/components-compiler.sh
@@ -94,10 +94,7 @@
     loc_cflags="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST_ALL"
     loc_cflags="${loc_cflags} '-DMBEDTLS_USER_CONFIG_FILE=\"../tests/configs/user-config-for-test.h\"'"
     loc_cflags="${loc_cflags} -I../framework/tests/include -O2"
-    # Until https://github.com/Mbed-TLS/mbedtls/issues/9814 is fixed,
-    # disable the new problematic optimization.
-    loc_cflags="${loc_cflags} -fzero-init-padding-bits=unions"
-    # Also allow a warning that we don't yet comply to.
+    # Allow a warning that we don't yet comply to.
     # https://github.com/Mbed-TLS/mbedtls/issues/9944
     loc_cflags="${loc_cflags} -Wno-error=unterminated-string-initialization"