diff --git a/configs/crypto-config-ccm-aes-sha256.h b/configs/crypto-config-ccm-aes-sha256.h
index 68a9c0a..be8a746 100644
--- a/configs/crypto-config-ccm-aes-sha256.h
+++ b/configs/crypto-config-ccm-aes-sha256.h
@@ -20,4 +20,9 @@
 #define PSA_WANT_KEY_TYPE_AES 1
 #define PSA_WANT_KEY_TYPE_RAW_DATA 1
 
+
+#define MBEDTLS_PSA_CRYPTO_C
+#define MBEDTLS_CTR_DRBG_C
+#define MBEDTLS_ENTROPY_C
+
 #endif /* PSA_CRYPTO_CONFIG_H */
diff --git a/tests/scripts/components-configuration-crypto.sh b/tests/scripts/components-configuration-crypto.sh
index 3c897eb..fe8fe91 100644
--- a/tests/scripts/components-configuration-crypto.sh
+++ b/tests/scripts/components-configuration-crypto.sh
@@ -2165,12 +2165,8 @@
 component_test_ccm_aes_sha256 () {
     msg "build: CCM + AES + SHA256 configuration"
 
-    cp "tf-psa-crypto/tests/configs/config_test_driver.h" "$CONFIG_H"
-    head -n -1 configs/crypto-config-ccm-aes-sha256.h > "$CRYPTO_CONFIG_H"
-    echo "#define MBEDTLS_PSA_CRYPTO_C"  >> "$CRYPTO_CONFIG_H"
-    echo "#define MBEDTLS_CTR_DRBG_C" >> "$CRYPTO_CONFIG_H"
-    echo "#define MBEDTLS_ENTROPY_C" >> "$CRYPTO_CONFIG_H"
-    echo "#endif /* PSA_CRYPTO_CONFIG_H */" >> "$CRYPTO_CONFIG_H"
+    # Setting a blank config disables everyhing in the library side.
+    echo '#define MBEDTLS_CONFIG_H ' >"$CONFIG_H"
     make
     msg "test: CCM + AES + SHA256 configuration"
     make test