diff --git a/libc/bionic/pathconf.cpp b/libc/bionic/pathconf.cpp
index de9e022..e6f5742 100644
--- a/libc/bionic/pathconf.cpp
+++ b/libc/bionic/pathconf.cpp
@@ -100,12 +100,16 @@
     case _PC_2_SYMLINKS:
       return __2_symlinks(s);
 
+    case _PC_ALLOC_SIZE_MIN:  /* fall through */
+    case _PC_REC_XFER_ALIGN:
+      return s.f_frsize;
+
+    case _PC_REC_MIN_XFER_SIZE:
+      return s.f_bsize;
+
 #if 0
-    case _PC_ALLOC_SIZE_MIN:
     case _PC_REC_INCR_XFER_SIZE:
     case _PC_REC_MAX_XFER_SIZE:
-    case _PC_REC_MIN_XFER_SIZE:
-    case _PC_REC_XFER_ALIGN:
 #endif
 
     case _PC_SYMLINK_MAX: