diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 9d1141ad4..71b0eb1b2 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -929,8 +929,8 @@ typedef enum krb5_name_canon_rule_options {
 	KRB5_NCRO_SECURE = 1 << 2
 } krb5_name_canon_rule_options;
 
-typedef struct krb5_name_canon_rule *krb5_name_canon_rule;
-typedef struct krb5_name_canon_iterator *krb5_name_canon_iterator;
+typedef struct krb5_name_canon_rule_data *krb5_name_canon_rule;
+typedef struct krb5_name_canon_iterator_data *krb5_name_canon_iterator;
 
 /*
  *
diff --git a/lib/krb5/principal.c b/lib/krb5/principal.c
index ebd752790..27efcab11 100644
--- a/lib/krb5/principal.c
+++ b/lib/krb5/principal.c
@@ -1256,7 +1256,7 @@ typedef enum krb5_name_canon_rule_type {
 	KRB5_NCRT_NSS
 } krb5_name_canon_rule_type;
 
-struct krb5_name_canon_rule {
+struct krb5_name_canon_rule_data {
 	krb5_name_canon_rule next;
 	krb5_name_canon_rule_type type;
 	krb5_name_canon_rule_options options;
@@ -1931,7 +1931,7 @@ _krb5_free_name_canon_rules(krb5_context context, krb5_name_canon_rule rules)
     rules = NULL;
 }
 
-struct krb5_name_canon_iterator {
+struct krb5_name_canon_iterator_data {
     krb5_name_canon_rule	rules;
     krb5_name_canon_rule	rule;
     krb5_const_principal	in_princ;