diff --git a/cmake/modules/SwiftSupport.cmake b/cmake/modules/SwiftSupport.cmake
index 1965939..64b7b36 100644
--- a/cmake/modules/SwiftSupport.cmake
+++ b/cmake/modules/SwiftSupport.cmake
@@ -57,6 +57,7 @@
                        ${module_directory}/${ASL_MODULE_NAME}.swiftdoc
                      DEPENDS
                        ${ASL_SOURCES}
+                       ${CMAKE_SWIFT_COMPILER}
                      COMMAND
                        ${CMAKE_COMMAND} -E make_directory ${module_directory}
                      COMMAND