diff --git a/3rdparty/CMakeLists.txt b/3rdparty/CMakeLists.txt
index 169e80ed..5e709175 100644
--- a/3rdparty/CMakeLists.txt
+++ b/3rdparty/CMakeLists.txt
@@ -55,16 +55,14 @@ if(DOWNLOAD_DEPENDENCIES)
         URL https://github.com/isledecomp/SIEdit/archive/ae447259389f3bf8273c7e7a4844743faf7cbdb8.tar.gz
         URL_MD5 dee68424fde8db6d5cef3b9034a8151f
     )
-else()
-    set(libweaver_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libweaver")
+    add_library(libweaver STATIC
+        ${libweaver_SOURCE_DIR}/lib/core.cpp
+        ${libweaver_SOURCE_DIR}/lib/file.cpp
+        ${libweaver_SOURCE_DIR}/lib/interleaf.cpp
+        ${libweaver_SOURCE_DIR}/lib/object.cpp
+        ${libweaver_SOURCE_DIR}/lib/sitypes.cpp
+    )
+    add_Library(libweaver::libweaver ALIAS libweaver)
+    target_include_directories(libweaver PUBLIC ${libweaver_SOURCE_DIR}/include/libweaver)
 endif()
 
-add_library(libweaver STATIC
-    ${libweaver_SOURCE_DIR}/lib/core.cpp
-    ${libweaver_SOURCE_DIR}/lib/file.cpp
-    ${libweaver_SOURCE_DIR}/lib/interleaf.cpp
-    ${libweaver_SOURCE_DIR}/lib/object.cpp
-    ${libweaver_SOURCE_DIR}/lib/sitypes.cpp
-)
-add_library(libweaver::libweaver ALIAS libweaver)
-target_include_directories(libweaver PUBLIC ${libweaver_SOURCE_DIR}/lib)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index da82ecb4..871ddfef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -135,6 +135,8 @@ else()
 
   find_package(iniparser REQUIRED CONFIG COMPONENTS shared)
   target_link_libraries(Isle::iniparser INTERFACE iniparser-shared)
+
+  find_package(libweaver REQUIRED)
 endif()
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)