diff --git a/.gitmodules b/.gitmodules
index 2fb1794..95ff892 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "modules/choc"]
 	path = modules/choc
 	url = https://github.com/SLM-Audio/choc.git
+[submodule "modules/clap-helpers"]
+	path = modules/clap-helpers
+	url = https://github.com/free-audio/clap-helpers.git
diff --git a/cmake/mostlyharmless_BinaryData.cpp b/cmake/mostlyharmless_BinaryData.cpp
index 35e4bca..b285977 100644
--- a/cmake/mostlyharmless_BinaryData.cpp
+++ b/cmake/mostlyharmless_BinaryData.cpp
@@ -12,7 +12,7 @@ namespace mostly_harmless::@ARG_TARGET_NAME@ {
             const auto size = data.end() - data.begin();
             BinaryResource res{ .data = data.begin(), .size = static_cast<size_t>(size) };
             return res;
-        } catch(std::system_error& e) {
+        } catch(std::system_error& /*e*/) {
             return {};
         }
     }
diff --git a/modules/clap-helpers b/modules/clap-helpers
new file mode 160000
index 0000000..b895ea2
--- /dev/null
+++ b/modules/clap-helpers
@@ -0,0 +1 @@
+Subproject commit b895ea2db10db7146ebba08d3dafeb2800d165e9