diff --git a/doc/fcfile.fncs b/doc/fcfile.fncs
index 2aa46e1..df7400b 100644
--- a/doc/fcfile.fncs
+++ b/doc/fcfile.fncs
@@ -36,7 +36,8 @@ Scans a single file and adds all fonts found to set.
If force is FcTrue, then the file is scanned even if
associated information is found in cache. If
file is a directory, it is added to
-dirs.
+dirs. Whether fonts are found depends on fontconfig
+poliy as well as the current configuration.
@@
@RET@ FcBool
@@ -53,7 +54,9 @@ Scans an entire directory and adds all fonts found to
set. If force is FcTrue, then
the directory and all files within it are scanned even if information is
present in the per-directory cache file or cache. Any
-subdirectories found are added to dirs.
+subdirectories found are added to dirs. Whether fonts
+or directories are found depends on fontconfig
+policy as well as the current configuration.
@@
@RET@ FcBool