diff --git a/CMakeLists.txt b/CMakeLists.txt
index 988a331..6cb4792 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -334,8 +334,8 @@ foreach(p LIB INCLUDE CMAKE)
 endforeach()
 
 # Define installs
-install(DIRECTORY include DESTINATION ${INSTALL_INCLUDE_DIR}/athena COMPONENT athena)
-install(DIRECTORY extern/fmt/include DESTINATION ${INSTALL_INCLUDE_DIR}/fmt COMPONENT athena)
+install(DIRECTORY include/ DESTINATION ${INSTALL_INCLUDE_DIR}/athena COMPONENT athena)
+install(DIRECTORY extern/fmt/include/fmt/ DESTINATION ${INSTALL_INCLUDE_DIR}/fmt COMPONENT athena)
 install(TARGETS athena-core fmt
         DESTINATION ${INSTALL_LIB_DIR} EXPORT AthenaTargets COMPONENT athena)
 if(WIN32 AND NOT CYGWIN)