4 files changed, 7 insertions, 7 deletions
diff --git a/ext/digest/md5/md5init.c b/ext/digest/md5/md5init.c
index 3cf0c1a203..433fbbd250 100644
--- a/ext/digest/md5/md5init.c
+++ b/ext/digest/md5/md5init.c
@@ -40,6 +40,6 @@ Init_md5(void)
 
 #undef RUBY_UNTYPED_DATA_WARNING
 #define RUBY_UNTYPED_DATA_WARNING 0
-    rb_ivar_set(cDigest_MD5, rb_intern("metadata"),
-		Data_Wrap_Struct(0, 0, 0, (void *)&md5));
+    rb_iv_set(cDigest_MD5, "metadata",
+	      Data_Wrap_Struct(0, 0, 0, (void *)&md5));
 }
diff --git a/ext/digest/rmd160/rmd160init.c b/ext/digest/rmd160/rmd160init.c
index 572638bb7c..7c0c1a09db 100644
--- a/ext/digest/rmd160/rmd160init.c
+++ b/ext/digest/rmd160/rmd160init.c
@@ -40,6 +40,6 @@ Init_rmd160(void)
 
 #undef RUBY_UNTYPED_DATA_WARNING
 #define RUBY_UNTYPED_DATA_WARNING 0
-    rb_ivar_set(cDigest_RMD160, rb_intern("metadata"),
-		Data_Wrap_Struct(0, 0, 0, (void *)&rmd160));
+    rb_iv_set(cDigest_RMD160, "metadata",
+	      Data_Wrap_Struct(0, 0, 0, (void *)&rmd160));
 }
diff --git a/ext/digest/sha1/sha1init.c b/ext/digest/sha1/sha1init.c
index 56ae0fae86..bb4af1c1c2 100644
--- a/ext/digest/sha1/sha1init.c
+++ b/ext/digest/sha1/sha1init.c
@@ -40,6 +40,6 @@ Init_sha1(void)
 
 #undef RUBY_UNTYPED_DATA_WARNING
 #define RUBY_UNTYPED_DATA_WARNING 0
-    rb_ivar_set(cDigest_SHA1, rb_intern("metadata"),
-		Data_Wrap_Struct(0, 0, 0, (void *)&sha1));
+    rb_iv_set(cDigest_SHA1, "metadata",
+	      Data_Wrap_Struct(0, 0, 0, (void *)&sha1));
 }
diff --git a/ext/digest/sha2/sha2init.c b/ext/digest/sha2/sha2init.c
index 8a5faeee57..7b39bda649 100644
--- a/ext/digest/sha2/sha2init.c
+++ b/ext/digest/sha2/sha2init.c
@@ -41,7 +41,7 @@ Init_sha2(void)
 
     rb_require("digest");
 
-    id_metadata = rb_intern("metadata");
+    id_metadata = rb_intern_const("metadata");
 
     mDigest = rb_path2class("Digest");
     cDigest_Base = rb_path2class("Digest::Base");