diff --git a/CMakeLists.txt b/CMakeLists.txt
index ecbb3df47..3eb78938e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -263,6 +263,7 @@ list(APPEND EXTRA_LIBS ${ZLIB_LIBRARY})
 # Check for zstd
 if(ENABLE_ZSTD)
   pkg_check_modules(LIBZSTD REQUIRED libzstd)
+  include_directories(${LIBZSTD_INCLUDE_DIRS})
   list(APPEND EXTRA_LIBS ${LIBZSTD_LDFLAGS})
   add_definitions(-DHAVE_ZSTD)
 endif()
@@ -270,6 +271,7 @@ endif()
 # Check for cJSON
 if(ENABLE_CJSON)
   pkg_check_modules(LIBCJSON REQUIRED libcjson)
+  include_directories(${LIBCJSON_INCLUDE_DIRS})
   add_definitions(-DHAVE_CJSON)
 endif()
 
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 0f5747aeb..ea0ef1225 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -81,14 +81,6 @@ set(LIB_CORE_SRC
 include(CheckSymbolExists)
 check_symbol_exists(flock "sys/file.h" HAVE_FLOCK)
 
-if(ENABLE_ZSTD)
-  include_directories(${LIBZSTD_INCLUDE_DIRS})
-endif()
-
-if(ENABLE_CJSON)
-  include_directories(${LIBCJSON_INCLUDE_DIRS})
-endif()
-
 include_directories("${CMAKE_BINARY_DIR}")
 add_library(weechat_core OBJECT ${LIB_CORE_SRC})
 target_link_libraries(weechat_core coverage_config)
diff --git a/src/plugins/relay/CMakeLists.txt b/src/plugins/relay/CMakeLists.txt
index a01d67176..adb390682 100644
--- a/src/plugins/relay/CMakeLists.txt
+++ b/src/plugins/relay/CMakeLists.txt
@@ -70,12 +70,10 @@ list(APPEND LINK_LIBS ${LIBGCRYPT_LDFLAGS})
 list(APPEND LINK_LIBS ${ZLIB_LIBRARY})
 
 if(ENABLE_ZSTD)
-  include_directories(${LIBZSTD_INCLUDE_DIRS})
   list(APPEND LINK_LIBS ${LIBZSTD_LDFLAGS})
 endif()
 
 if(ENABLE_CJSON)
-  include_directories(${LIBCJSON_INCLUDE_DIRS})
   list(APPEND LINK_LIBS ${LIBCJSON_LDFLAGS})
 endif()