diff --git a/extern/zlib/CMakeLists.txt b/extern/zlib/CMakeLists.txt
index 83da17b..5a42cd3 100644
--- a/extern/zlib/CMakeLists.txt
+++ b/extern/zlib/CMakeLists.txt
@@ -23,24 +23,26 @@ else ()
       trees.c
       uncompr.c
       zutil.c
-      crc32.h
-      deflate.h
-      gzguts.h
-      inffast.h
-      inffixed.h
-      inflate.h
-      inftrees.h
-      trees.h
-      zconf.h
-      zlib.h
-      zutil.h)
+      include/crc32.h
+      include/deflate.h
+      include/gzguts.h
+      include/inffast.h
+      include/inffixed.h
+      include/inflate.h
+      include/inftrees.h
+      include/trees.h
+      include/zconf.h
+      include/zlib.h
+      include/zutil.h)
   if (WIN32 AND NOT UNIX)
-    install(FILES zconf.h zlib.h DESTINATION include COMPONENT zlib)
+    install(FILES include/zconf.h include/zlib.h DESTINATION include COMPONENT zlib)
     install(TARGETS z DESTINATION lib COMPONENT zlib)
   else ()
     target_compile_options(z PRIVATE -Wno-implicit-fallthrough)
   endif ()
-  target_include_directories(z INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+  target_include_directories(z PUBLIC
+          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+          $<INSTALL_INTERFACE:include>)
   set(ZLIB_LIBRARIES z CACHE STRING "zlib libraries" FORCE)
   set(ATHENA_ZLIB YES CACHE BOOL "Using built-in zlib" FORCE)
 endif ()
diff --git a/extern/zlib/crc32.h b/extern/zlib/include/crc32.h
similarity index 100%
rename from extern/zlib/crc32.h
rename to extern/zlib/include/crc32.h
diff --git a/extern/zlib/deflate.h b/extern/zlib/include/deflate.h
similarity index 100%
rename from extern/zlib/deflate.h
rename to extern/zlib/include/deflate.h
diff --git a/extern/zlib/gzguts.h b/extern/zlib/include/gzguts.h
similarity index 100%
rename from extern/zlib/gzguts.h
rename to extern/zlib/include/gzguts.h
diff --git a/extern/zlib/inffast.h b/extern/zlib/include/inffast.h
similarity index 100%
rename from extern/zlib/inffast.h
rename to extern/zlib/include/inffast.h
diff --git a/extern/zlib/inffixed.h b/extern/zlib/include/inffixed.h
similarity index 100%
rename from extern/zlib/inffixed.h
rename to extern/zlib/include/inffixed.h
diff --git a/extern/zlib/inflate.h b/extern/zlib/include/inflate.h
similarity index 100%
rename from extern/zlib/inflate.h
rename to extern/zlib/include/inflate.h
diff --git a/extern/zlib/inftrees.h b/extern/zlib/include/inftrees.h
similarity index 100%
rename from extern/zlib/inftrees.h
rename to extern/zlib/include/inftrees.h
diff --git a/extern/zlib/trees.h b/extern/zlib/include/trees.h
similarity index 100%
rename from extern/zlib/trees.h
rename to extern/zlib/include/trees.h
diff --git a/extern/zlib/zconf.h b/extern/zlib/include/zconf.h
similarity index 100%
rename from extern/zlib/zconf.h
rename to extern/zlib/include/zconf.h
diff --git a/extern/zlib/zlib.h b/extern/zlib/include/zlib.h
similarity index 100%
rename from extern/zlib/zlib.h
rename to extern/zlib/include/zlib.h
diff --git a/extern/zlib/zutil.h b/extern/zlib/include/zutil.h
similarity index 100%
rename from extern/zlib/zutil.h
rename to extern/zlib/include/zutil.h