diff --git a/basis/libc/libc.factor b/basis/libc/libc.factor
index 9cfbf24f7a..ee5f7abad7 100644
--- a/basis/libc/libc.factor
+++ b/basis/libc/libc.factor
@@ -7,7 +7,7 @@ combinators continuations destructors destructors.private kernel math
 namespaces prettyprint sequences sets summary system vocabs vocabs.parser ;
 IN: libc
 
-<< "libc." os unparse append use-vocab >>
+<< "libc." os unparse append require >>
 
 LIBRARY: factor
 
diff --git a/basis/libc/linux/linux.factor b/basis/libc/linux/linux.factor
index 40a2ea9fe8..b012bad107 100644
--- a/basis/libc/linux/linux.factor
+++ b/basis/libc/linux/linux.factor
@@ -1,5 +1,5 @@
 USING: alien.syntax ;
-IN: libc.linux
+IN: libc
 
 LIBRARY: libc
 
diff --git a/basis/libc/macosx/macosx.factor b/basis/libc/macosx/macosx.factor
index e91a705c61..c637d69745 100644
--- a/basis/libc/macosx/macosx.factor
+++ b/basis/libc/macosx/macosx.factor
@@ -1,5 +1,5 @@
 USING: alien.syntax ;
-IN: libc.macosx
+IN: libc
 
 LIBRARY: libc
 
diff --git a/basis/libc/windows/windows.factor b/basis/libc/windows/windows.factor
index 2a7f0cbbb6..0f4be2213c 100644
--- a/basis/libc/windows/windows.factor
+++ b/basis/libc/windows/windows.factor
@@ -1,5 +1,5 @@
 USING: alien.syntax ;
-IN: libc.windows
+IN: libc
 
 LIBRARY: libc