diff --git a/Libraries/LibWeb/CMakeLists.txt b/Libraries/LibWeb/CMakeLists.txt
index d86e9ab8714..07988c602d0 100644
--- a/Libraries/LibWeb/CMakeLists.txt
+++ b/Libraries/LibWeb/CMakeLists.txt
@@ -833,6 +833,7 @@ set(GENERATED_SOURCES
     CSS/DefaultStyleSheetSource.cpp
     CSS/Enums.cpp
     CSS/GeneratedCSSStyleProperties.cpp
+    CSS/GeneratedCSSStyleProperties.idl
     CSS/Keyword.cpp
     CSS/MathFunctions.cpp
     CSS/MediaFeatureID.cpp
diff --git a/Meta/CMake/libweb_generators.cmake b/Meta/CMake/libweb_generators.cmake
index 9075ad7947f..cf4e5f61c0e 100644
--- a/Meta/CMake/libweb_generators.cmake
+++ b/Meta/CMake/libweb_generators.cmake
@@ -66,6 +66,7 @@ function (generate_css_implementation)
 
     invoke_idl_generator(
         "GeneratedCSSStyleProperties.cpp"
+        "GeneratedCSSStyleProperties.idl"
         Lagom::GenerateCSSStyleProperties
         "${LIBWEB_INPUT_FOLDER}/CSS/Properties.json"
         "CSS/GeneratedCSSStyleProperties.h"
@@ -122,10 +123,18 @@ function (generate_css_implementation)
     endif()
     list(APPEND LIBWEB_ALL_GENERATED_HEADERS ${CSS_GENERATED_HEADERS})
     set(LIBWEB_ALL_GENERATED_HEADERS ${LIBWEB_ALL_GENERATED_HEADERS} PARENT_SCOPE)
+
+    set(CSS_GENERATED_IDL
+        "GeneratedCSSStyleProperties.idl"
+    )
+    list(APPEND LIBWEB_ALL_GENERATED_IDL ${CSS_GENERATED_IDL})
+    set(LIBWEB_ALL_GENERATED_IDL ${LIBWEB_ALL_GENERATED_IDL} PARENT_SCOPE)
 endfunction()
 
 function (generate_js_bindings target)
     set(LIBWEB_INPUT_FOLDER "${CMAKE_CURRENT_SOURCE_DIR}")
+    set(generated_idl_targets ${LIBWEB_ALL_GENERATED_IDL})
+    list(TRANSFORM generated_idl_targets PREPEND "generate_")
     function(libweb_js_bindings class)
         cmake_parse_arguments(PARSE_ARGV 1 LIBWEB_BINDINGS "NAMESPACE;ITERABLE;GLOBAL" "" "")
         get_filename_component(basename "${class}" NAME)
@@ -186,6 +195,7 @@ function (generate_js_bindings target)
         add_custom_target(generate_${basename} DEPENDS ${BINDINGS_SOURCES})
         add_dependencies(all_generated generate_${basename})
         add_dependencies(${target} generate_${basename})
+        add_dependencies(generate_${basename} ${generated_idl_targets})
 
         set(BINDINGS_HEADERS ${BINDINGS_SOURCES})
         list(FILTER BINDINGS_HEADERS INCLUDE REGEX "\.h$")
@@ -230,6 +240,7 @@ function (generate_js_bindings target)
         add_custom_target(generate_exposed_interfaces DEPENDS ${exposed_interface_sources})
         add_dependencies(all_generated generate_exposed_interfaces)
         add_dependencies(${target} generate_exposed_interfaces)
+        add_dependencies(generate_exposed_interfaces ${generated_idl_targets})
 
         list(TRANSFORM exposed_interface_sources PREPEND "${CMAKE_CURRENT_BINARY_DIR}/")
         set(exposed_interface_headers ${exposed_interface_sources})
diff --git a/Meta/CMake/utils.cmake b/Meta/CMake/utils.cmake
index 8407e82259d..90845811e02 100644
--- a/Meta/CMake/utils.cmake
+++ b/Meta/CMake/utils.cmake
@@ -184,7 +184,7 @@ function(invoke_generator name generator primary_source header implementation)
     set(CURRENT_LIB_GENERATED ${CURRENT_LIB_GENERATED} PARENT_SCOPE)
 endfunction()
 
-function(invoke_idl_generator name generator primary_source header implementation idl)
+function(invoke_idl_generator cpp_name idl_name generator primary_source header implementation idl)
     cmake_parse_arguments(invoke_idl_generator "" "" "arguments;dependencies" ${ARGN})
 
     add_custom_command(
@@ -198,8 +198,10 @@ function(invoke_idl_generator name generator primary_source header implementatio
         DEPENDS ${generator} ${invoke_idl_generator_dependencies} "${primary_source}"
     )
 
-    add_custom_target("generate_${name}" DEPENDS "${header}" "${implementation}" "${idl}")
-    add_dependencies(all_generated "generate_${name}")
+    add_custom_target("generate_${cpp_name}" DEPENDS "${header}" "${implementation}" "${idl}")
+    add_custom_target("generate_${idl_name}" DEPENDS "generate_${cpp_name}")
+    add_dependencies(all_generated "generate_${cpp_name}")
+    add_dependencies(all_generated "generate_${idl_name}")
     list(APPEND CURRENT_LIB_GENERATED "${name}")
     set(CURRENT_LIB_GENERATED ${CURRENT_LIB_GENERATED} PARENT_SCOPE)
 endfunction()