diff --git a/src/libcore/sys.rs b/src/libcore/sys.rs
index eba700044c3..be3bab6ac2e 100644
--- a/src/libcore/sys.rs
+++ b/src/libcore/sys.rs
@@ -26,7 +26,8 @@ native mod rustrt {
 native mod rusti {
     fn get_tydesc<T>() -> *();
     fn size_of<T>() -> uint;
-    fn align_of<T>() -> uint;
+    fn pref_align_of<T>() -> uint;
+    fn min_align_of<T>() -> uint;
 }
 
 #[doc = "
@@ -51,15 +52,12 @@ This is the alignment used for struct fields. It may be smaller
 than the preferred alignment.
 "]
 fn min_align_of<T>() -> uint unsafe {
-    // FIXME: use rusti::min_align_of after snapshot
-    // rusti::align_of::<T>()
-    fail "FIXME: uncomment the above line to use min_align_of";
+    rusti::min_align_of::<T>()
 }
 
 #[doc = "Returns the preferred alignment of a type"]
 fn pref_align_of<T>() -> uint unsafe {
-    // FIXME: use rusti::pref_align_of after snapshot
-    rusti::align_of::<T>()
+    rusti::pref_align_of::<T>()
 }
 
 #[doc = "Returns the refcount of a shared box"]
diff --git a/src/rustc/middle/trans/native.rs b/src/rustc/middle/trans/native.rs
index 46cef5e2bb6..d4c44b6c2b8 100644
--- a/src/rustc/middle/trans/native.rs
+++ b/src/rustc/middle/trans/native.rs
@@ -764,11 +764,6 @@ fn trans_intrinsic(ccx: @crate_ctxt, decl: ValueRef, item: @ast::native_item,
         Store(bcx, C_uint(ccx, shape::llsize_of_real(ccx, lltp_ty)),
               fcx.llretptr);
       }
-      // FIXME: Transitional. Please remove me.
-      "align_of" {
-        Store(bcx, C_uint(ccx, shape::llalign_of_pref(ccx, lltp_ty)),
-              fcx.llretptr);
-      }
       "min_align_of" {
         Store(bcx, C_uint(ccx, shape::llalign_of_min(ccx, lltp_ty)),
               fcx.llretptr);
diff --git a/src/rustc/middle/trans/type_use.rs b/src/rustc/middle/trans/type_use.rs
index 1a647aa5bf1..bee159e3373 100644
--- a/src/rustc/middle/trans/type_use.rs
+++ b/src/rustc/middle/trans/type_use.rs
@@ -76,7 +76,7 @@ fn type_uses_for(ccx: @crate_ctxt, fn_id: def_id, n_tps: uint)
       ast_map::node_native_item(i@@{node: native_item_fn(_, _), _}, abi, _) {
         if abi == native_abi_rust_intrinsic {
             let flags = alt check i.ident {
-              "size_of" | "align_of" |
+              "size_of" |
               "pref_align_of" | "min_align_of" | "init" |
               "reinterpret_cast" { use_repr }
               "get_tydesc" | "needs_drop" { use_tydesc }
diff --git a/src/rustc/middle/typeck.rs b/src/rustc/middle/typeck.rs
index e6f112f835d..d8c275bfd04 100644
--- a/src/rustc/middle/typeck.rs
+++ b/src/rustc/middle/typeck.rs
@@ -2007,7 +2007,7 @@ fn check_intrinsic_type(ccx: @crate_ctxt, it: @ast::native_item) {
     }
     let tcx = ccx.tcx;
     let (n_tps, inputs, output) = alt it.ident {
-      "size_of" | "align_of" |
+      "size_of" |
       "pref_align_of" | "min_align_of" { (1u, [], ty::mk_uint(ccx.tcx)) }
       "get_tydesc" { (1u, [], ty::mk_nil_ptr(tcx)) }
       "init" { (1u, [], param(ccx, 0u)) }