diff --git a/cmake/modules/TpQtMacros.cmake b/cmake/modules/TpQtMacros.cmake
--- a/cmake/modules/TpQtMacros.cmake
+++ b/cmake/modules/TpQtMacros.cmake
@@ -223,7 +223,9 @@
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 
         DEPENDS ${CMAKE_SOURCE_DIR}/tools/libqtcodegen.py
-                ${CMAKE_SOURCE_DIR}/tools/qt-client-gen.py)
+                ${CMAKE_SOURCE_DIR}/tools/qt-client-gen.py
+                ${CMAKE_CURRENT_BINARY_DIR}/_gen/stable-spec.xml
+                ${CMAKE_CURRENT_BINARY_DIR}/_gen/spec-${spec}.xml)
     add_custom_target(generate_cli-${spec}-body DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/_gen/cli-${spec}-body.hpp)
     add_dependencies(all-generated-sources generate_cli-${spec}-body)
 
@@ -259,7 +261,9 @@
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 
         DEPENDS ${CMAKE_SOURCE_DIR}/tools/libqtcodegen.py
-                ${CMAKE_SOURCE_DIR}/tools/qt-client-gen.py)
+                ${CMAKE_SOURCE_DIR}/tools/qt-client-gen.py
+                ${CMAKE_CURRENT_BINARY_DIR}/_gen/future-spec.xml
+                ${CMAKE_CURRENT_BINARY_DIR}/_gen/future-${spec}.xml)
     add_custom_target(generate_future-${spec}-body DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/_gen/future-${spec}-body.hpp)
     add_dependencies(all-generated-sources generate_future-${spec}-body)
 
@@ -294,7 +298,9 @@
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 
         DEPENDS ${CMAKE_SOURCE_DIR}/tools/libqtcodegen.py
-                ${CMAKE_SOURCE_DIR}/tools/qt-svc-gen.py)
+                ${CMAKE_SOURCE_DIR}/tools/qt-svc-gen.py
+                ${CMAKE_CURRENT_BINARY_DIR}/_gen/stable-spec.xml
+                ${CMAKE_CURRENT_BINARY_DIR}/_gen/spec-svc-${spec}.xml)
     add_custom_target(generate_service-${spec}-body DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/_gen/svc-${spec}.cpp)
     add_dependencies(all-generated-service-sources generate_service-${spec}-body)