diff --git a/cmake/cpp.cmake b/cmake/cpp.cmake
index 9cd60d87e4..8ea55a8854 100644
--- a/cmake/cpp.cmake
+++ b/cmake/cpp.cmake
@@ -216,6 +216,7 @@ endfunction()
 # Generate Protobuf cpp sources
 set(OR_TOOLS_PROTO_FILES)
 file(GLOB_RECURSE OR_TOOLS_PROTO_FILES RELATIVE ${PROJECT_SOURCE_DIR}
+  "ortools/algorithms/*.proto"
   "ortools/bop/*.proto"
   "ortools/constraint_solver/*.proto"
   "ortools/glop/*.proto"
diff --git a/cmake/dotnet.cmake b/cmake/dotnet.cmake
index a4e0ad3324..284b58809b 100644
--- a/cmake/dotnet.cmake
+++ b/cmake/dotnet.cmake
@@ -120,6 +120,7 @@ message(STATUS ".Net project build path: ${DOTNET_PROJECT_DIR}")
 # Generate Protobuf .Net sources
 set(PROTO_DOTNETS)
 file(GLOB_RECURSE proto_dotnet_files RELATIVE ${PROJECT_SOURCE_DIR}
+  "ortools/algorithms/*.proto"
   "ortools/bop/*.proto"
   "ortools/constraint_solver/*.proto"
   "ortools/glop/*.proto"
diff --git a/cmake/java.cmake b/cmake/java.cmake
index 3995e56c2f..5cf41e0ee4 100644
--- a/cmake/java.cmake
+++ b/cmake/java.cmake
@@ -90,6 +90,7 @@ message(STATUS "Java project build path: ${JAVA_PROJECT_DIR}")
 # Generate Protobuf java sources
 set(PROTO_JAVAS)
 file(GLOB_RECURSE proto_java_files RELATIVE ${PROJECT_SOURCE_DIR}
+  "ortools/algorithms/*.proto"
   "ortools/bop/*.proto"
   "ortools/constraint_solver/*.proto"
   "ortools/glop/*.proto"
diff --git a/cmake/python.cmake b/cmake/python.cmake
index 79aca5989f..32748afda3 100644
--- a/cmake/python.cmake
+++ b/cmake/python.cmake
@@ -139,6 +139,7 @@ search_python_module(
 set(PROTO_PYS)
 set(PROTO_MYPYS)
 file(GLOB_RECURSE proto_py_files RELATIVE ${PROJECT_SOURCE_DIR}
+  "ortools/algorithms/*.proto"
   "ortools/bop/*.proto"
   "ortools/constraint_solver/*.proto"
   "ortools/glop/*.proto"