diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index 278370c6a..db3766a9d 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -977,7 +977,7 @@
      PSA_EXPORT_KEY_PAIR_MAX_SIZE)
 #undef PSA_EXPORT_KEY_PAIR_MAX_SIZE
 #define PSA_EXPORT_KEY_PAIR_MAX_SIZE    \
-    PSA_KEY_EXPORT_DH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS)
+    PSA_KEY_EXPORT_FFDH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS)
 #endif
 
 /** Sufficient buffer size for exporting any asymmetric public key.