diff --git a/library/pk.c b/library/pk.c
index c32294d..80e30be 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -424,7 +424,7 @@
 #if defined(MBEDTLS_RSA_C)
         case MBEDTLS_PK_RSA:
         {
-            int want_crypt = 0; /* 0: encrypt/decrypt; 1: sign/verify */
+            int want_crypt = 0; /* 0: sign/verify; 1: encrypt/decrypt */
             switch (usage) {
                 case PSA_KEY_USAGE_SIGN_MESSAGE:
                 case PSA_KEY_USAGE_SIGN_HASH: