diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1a1f8e9..949d7f1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,9 +20,14 @@ add_library(ls-qpack "")
 target_include_directories(ls-qpack PUBLIC .)
 target_sources(ls-qpack PRIVATE lsqpack.c)
 
-target_include_directories(ls-qpack PRIVATE deps/xxhash/)
+# target_include_directories(ls-qpack PRIVATE deps/xxhash/)
 if(LSQPACK_XXH)
     target_sources(ls-qpack PRIVATE deps/xxhash/xxhash.c)
+else()
+    find_package(PkgConfig REQUIRED)
+    pkg_check_modules(XXH REQUIRED IMPORTED_TARGET libxxhash)
+    target_link_libraries(ls-qpack PUBLIC PkgConfig::XXH)
+    set(LSQPACK_DEPENDS "libxxhash")
 endif()
 
 if(WIN32)