diff --git a/basis/cpu/ppc/assembler/assembler.factor b/basis/cpu/ppc/assembler/assembler.factor
index d7e71f6058..f94cc00abc 100644
--- a/basis/cpu/ppc/assembler/assembler.factor
+++ b/basis/cpu/ppc/assembler/assembler.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2005, 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: compiler.generator.fixup kernel namespaces words
+USING: compiler.codegen.fixup kernel namespaces words
 io.binary math math.order cpu.ppc.assembler.backend ;
 IN: cpu.ppc.assembler
 
diff --git a/basis/cpu/ppc/assembler/backend/backend.factor b/basis/cpu/ppc/assembler/backend/backend.factor
index 1b442662d5..881b094ca2 100644
--- a/basis/cpu/ppc/assembler/backend/backend.factor
+++ b/basis/cpu/ppc/assembler/backend/backend.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: compiler.generator.fixup kernel namespaces make sequences
-words math math.bitwise io.binary parser lexer ;
+USING: compiler.codegen.fixup cpu.architecture
+compiler.constants kernel namespaces make sequences words math
+math.bitwise io.binary parser lexer ;
 IN: cpu.ppc.assembler.backend
 
 : insn ( operand opcode -- ) { 26 0 } bitfield , ;