diff --git a/CMakeLists.txt b/CMakeLists.txt
index 280d50d..2809445 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,10 +7,10 @@
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/src/cmake")
 
 # Find Apache Runtime
-find_package(APR QUIET)
+find_package(APR REQUIRED)
 
 # Find Apache Runtime Utilities
-find_package(APR-Util QUIET)
+find_package(APR-Util REQUIRED)
 
 # Building
 add_subdirectory(src)