diff --git a/docs/cmake-toml.md b/docs/cmake-toml.md
index 8ea8eb9..82a832d 100644
--- a/docs/cmake-toml.md
+++ b/docs/cmake-toml.md
@@ -204,4 +204,5 @@ component = "mycomponent"
 files = ["content/my.png"]
 dirs = ["include"]
 configs = ["Release", "Debug"]
+optional = false
 ```
\ No newline at end of file
diff --git a/include/project_parser.hpp b/include/project_parser.hpp
index c8f8186..a4ce581 100644
--- a/include/project_parser.hpp
+++ b/include/project_parser.hpp
@@ -128,6 +128,7 @@ struct Install {
     std::vector<std::string> configs;
     std::string destination;
     std::string component;
+    bool optional = false;
 };
 
 struct Subdir {
diff --git a/src/cmake_generator.cpp b/src/cmake_generator.cpp
index 1034eaa..d290122 100644
--- a/src/cmake_generator.cpp
+++ b/src/cmake_generator.cpp
@@ -1045,8 +1045,9 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
                 component_name = inst.targets.front();
             }
             auto component = std::make_pair("COMPONENT", component_name);
+            auto optional = inst.optional ? "OPTIONAL" : "";
             ConditionScope cs(gen, inst.condition);
-            cmd("install")(targets, dirs, files, configs, destination, component);
+            cmd("install")(targets, dirs, files, configs, destination, component, optional);
         }
     }
 
diff --git a/src/project_parser.cpp b/src/project_parser.cpp
index 8b5166b..e152e0d 100644
--- a/src/project_parser.cpp
+++ b/src/project_parser.cpp
@@ -619,6 +619,7 @@ Project::Project(const Project *parent, const std::string &path, bool build) {
             i.optional("configs", inst.configs);
             i.required("destination", inst.destination);
             i.optional("component", inst.component);
+            i.optional("optional", inst.optional);
             installs.push_back(inst);
         }
     }