diff --git a/configs/config-tfm.h b/configs/config-tfm.h
index f6f527e..197b808 100644
--- a/configs/config-tfm.h
+++ b/configs/config-tfm.h
@@ -46,7 +46,7 @@
 #undef MBEDTLS_PLATFORM_STD_EXIT_FAILURE
 
 /* CCM is the only cipher/AEAD enabled in TF-M configuration files, but it
- * does not need CIPHER_C to be enabled, so we can disabled it in order
+ * does not need CIPHER_C to be enabled, so we can disable it in order
  * to reduce code size further. */
 #undef MBEDTLS_CIPHER_C