--- a/config
+++ b/config
@@ -59,13 +59,7 @@ have=NGX_HTTP_BROTLI_STATIC_MODULE . auto/have  # deprecated
 ngx_module_type=HTTP_FILTER
 ngx_module_name=ngx_http_brotli_filter_module
 
-brotli="/usr/local"
-
-if [  -f "/usr/include/brotli/encode.h" ]; then
-
-brotli="/usr"
-
-fi
+brotli=$(pkg-config --variable=prefix libbrotlienc)
 
 if [ ! -f "$brotli/include/brotli/encode.h" ]; then
 
@@ -75,11 +69,7 @@ if [ ! -f "$brotli/include/brotli/encode.h" ]; then
 cat << END
 
 $0: error: \
-Brotli library is missing from the $brotli directory.
-
-Please make sure that the git submodule has been checked out:
-
-    cd $ngx_addon_dir && git submodule update --init && cd $PWD
+Brotli library not found. Don't you have app-arch/brotli installed?
 
 END
     exit 1