diff --git a/CMakeLists.txt b/CMakeLists.txt
index 235c5fa206..a4f6bb7b80 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -414,7 +414,7 @@ if(OPENAL_FOUND)
 	else()
 		message("Using static soundtouch from Externals")
 		add_subdirectory(Externals/soundtouch)
-		include_directories(Externals/soundtouch)
+		include_directories(Externals)
 	endif()
 endif()