diff --git a/tests/clap-first-example/CMakeLists.txt b/tests/clap-first-example/CMakeLists.txt
index 0399fdac..e25d319b 100644
--- a/tests/clap-first-example/CMakeLists.txt
+++ b/tests/clap-first-example/CMakeLists.txt
@@ -2,6 +2,7 @@ project(clap-first-distortion)
 
 add_library(clap-first-distortion-base STATIC distortion_clap.cpp)
 target_link_libraries(clap-first-distortion-base PUBLIC clap)
+target_compile_options(clap--first-distortion-base PRIVATE _USE_MATH_DEFINES=1)
 
 add_library(${PROJECT_NAME} MODULE
         distortion_clap_entry.cpp
diff --git a/tests/clap-first-example/distortion_clap.cpp b/tests/clap-first-example/distortion_clap.cpp
index 4e5e2dec..109fd4c2 100644
--- a/tests/clap-first-example/distortion_clap.cpp
+++ b/tests/clap-first-example/distortion_clap.cpp
@@ -276,8 +276,8 @@ bool c99dist_state_load(const clap_plugin_t *plugin, const clap_istream_t *strea
 
   return true;
 }
-static const clap_plugin_state_t s_c99dist_state = {.save = c99dist_state_save,
-                                                    .load = c99dist_state_load};
+static const clap_plugin_state_t s_c99dist_state = {c99dist_state_save,
+                                                    c99dist_state_load};
 
 /////////////////
 // clap_plugin //