diff --git a/CMakeLists.txt b/CMakeLists.txt
index 50864fccb06527f527726dec31544d798550c120..9c9ebb66d38180d2758af03380a7aa5e8b378513 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -191,8 +191,8 @@ include_directories(${PUGS_SOURCE_DIR}/packages/rang/include)
 # CLI11
 include_directories(${PUGS_SOURCE_DIR}/packages/CLI11/include)
 
-# PGETL
-include_directories(${PUGS_SOURCE_DIR}/packages/PEGTL/include/tao)
+# PEGTL
+include_directories(SYSTEM ${PUGS_SOURCE_DIR}/packages/PEGTL/include/tao)
 
 # Pugs src
 add_subdirectory(src)