diff --git a/basis/checksums/openssl/openssl.factor b/basis/checksums/openssl/openssl.factor
index 673500b62a..bc70230fd0 100644
--- a/basis/checksums/openssl/openssl.factor
+++ b/basis/checksums/openssl/openssl.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors byte-arrays alien.c-types alien.data kernel
 continuations destructors sequences io openssl openssl.libcrypto
-checksums checksums.stream ;
+checksums checksums.stream classes.struct ;
 IN: checksums.openssl
 
 ERROR: unknown-digest name ;
@@ -23,7 +23,7 @@ TUPLE: evp-md-context < disposable handle ;
 
 : <evp-md-context> ( -- ctx )
     evp-md-context new-disposable
-    "EVP_MD_CTX" <c-object> dup EVP_MD_CTX_init >>handle ;
+    EVP_MD_CTX <struct> dup EVP_MD_CTX_init >>handle ;
 
 M: evp-md-context dispose*
     handle>> EVP_MD_CTX_cleanup drop ;
diff --git a/basis/io/sockets/secure/openssl/openssl.factor b/basis/io/sockets/secure/openssl/openssl.factor
index 6d01a66cf0..400a44ea02 100644
--- a/basis/io/sockets/secure/openssl/openssl.factor
+++ b/basis/io/sockets/secure/openssl/openssl.factor
@@ -31,7 +31,7 @@ TUPLE: openssl-context < secure-context aliens sessions ;
     ] [ drop ] if ;
 
 : password-callback ( -- alien )
-    "int" { "void*" "int" "bool" "void*" } "cdecl"
+    int { void* int bool void* } "cdecl"
     [| buf size rwflag password! |
         password [ B{ 0 } password! ] unless
 
diff --git a/basis/openssl/libcrypto/libcrypto.factor b/basis/openssl/libcrypto/libcrypto.factor
index 0eba1d2854..df9955a53c 100644
--- a/basis/openssl/libcrypto/libcrypto.factor
+++ b/basis/openssl/libcrypto/libcrypto.factor
@@ -5,8 +5,8 @@
 !
 ! export LD_LIBRARY_PATH=/opt/local/lib
 
-USING: alien alien.syntax combinators kernel system
-alien.libraries ;
+USING: alien alien.c-types alien.syntax combinators kernel system
+alien.libraries classes.struct ;
 
 IN: openssl.libcrypto
 
@@ -20,35 +20,35 @@ IN: openssl.libcrypto
 } cond
 >>
 
-C-STRUCT: bio-method
-    { "int" "type" }
-    { "void*" "name" }
-    { "void*" "bwrite" }
-    { "void*" "bread" }
-    { "void*" "bputs" }
-    { "void*" "bgets" }
-    { "void*" "ctrl" }
-    { "void*" "create" }
-    { "void*" "destroy" }
-    { "void*" "callback-ctrl" } ;
+STRUCT: bio-method
+    { type int }
+    { name void* }
+    { bwrite void* }
+    { bread void* }
+    { bputs void* }
+    { bgets void* }
+    { ctrl void* }
+    { create void* }
+    { destroy void* }
+    { callback-ctrl void* } ;
 
-C-STRUCT: bio
-    { "void*" "method" }
-    { "void*" "callback" }
-    { "void*" "cb-arg" }
-    { "int" "init" }
-    { "int" "shutdown" }
-    { "int" "flags" }
-    { "int" "retry-reason" }
-    { "int" "num" }
-    { "void*" "ptr" }
-    { "void*" "next-bio" }
-    { "void*" "prev-bio" }
-    { "int" "references" } 
-    { "ulong" "num-read" }
-    { "ulong" "num-write" } 
-    { "void*" "crypto-ex-data-stack" }
-    { "int" "crypto-ex-data-dummy" } ;
+STRUCT: bio
+    { method void* }
+    { callback void* }
+    { cb-arg void* }
+    { init int }
+    { shutdown int }
+    { flags int }
+    { retry-reason int }
+    { num int }
+    { ptr void* }
+    { next-bio void* }
+    { prev-bio void* }
+    { references int } 
+    { num-read ulong }
+    { num-write ulong } 
+    { crypto-ex-data-stack void* }
+    { crypto-ex-data-dummy int } ;
 
 CONSTANT: BIO_NOCLOSE       HEX: 00
 CONSTANT: BIO_CLOSE         HEX: 01
@@ -103,11 +103,11 @@ FUNCTION: void* BIO_f_buffer (  ) ;
 
 CONSTANT: EVP_MAX_MD_SIZE 64
 
-C-STRUCT: EVP_MD_CTX
-    { "EVP_MD*" "digest" }
-    { "ENGINE*" "engine" }
-    { "ulong" "flags" }
-    { "void*" "md_data" } ;
+STRUCT: EVP_MD_CTX
+    { digest EVP_MD* }
+    { engine ENGINE* }
+    { flags ulong }
+    { md_data void* } ;
 
 TYPEDEF: void* EVP_MD*
 TYPEDEF: void* ENGINE*