--- a/src/Magnum/Audio/CMakeLists.txt
+++ b/src/Magnum/Audio/CMakeLists.txt
@@ -86,7 +86,6 @@
 add_library(MagnumAudio ${SHARED_OR_STATIC}
     $<TARGET_OBJECTS:MagnumAudioObjects>
     ${MagnumAudio_GracefulAssert_SRCS})
-target_include_directories(MagnumAudio PUBLIC ${OPENAL_INCLUDE_DIR})
 set_target_properties(MagnumAudio PROPERTIES
     DEBUG_POSTFIX "-d"
     FOLDER "Magnum/Audio")
