diff --git a/src/platform/commandline.c b/src/platform/commandline.c
index 90e00c96e..bee0a608b 100644
--- a/src/platform/commandline.c
+++ b/src/platform/commandline.c
@@ -60,6 +60,7 @@ bool parseArguments(struct GBAArguments* opts, struct GBAConfig* config, int arg
 		"g"
 #endif
 	;
+	memset(opts, 0, sizeof(*opts));
 	if (subparser && subparser->extraOptions) {
 		// TODO: modularize options to subparsers
 		strncat(options, subparser->extraOptions, sizeof(options) - strlen(options) - 1);
diff --git a/src/platform/perf-main.c b/src/platform/perf-main.c
index 7929f9c0c..e22e513de 100644
--- a/src/platform/perf-main.c
+++ b/src/platform/perf-main.c
@@ -61,7 +61,7 @@ int main(int argc, char** argv) {
 	};
 	GBAConfigLoadDefaults(&config, &opts);
 
-	struct GBAArguments args = {};
+	struct GBAArguments args;
 	if (!parseArguments(&args, &config, argc, argv, &subparser)) {
 		usage(argv[0], PERF_USAGE);
 		freeArguments(&args);
diff --git a/src/platform/qt/GBAApp.cpp b/src/platform/qt/GBAApp.cpp
index e11315b17..6605d91aa 100644
--- a/src/platform/qt/GBAApp.cpp
+++ b/src/platform/qt/GBAApp.cpp
@@ -31,7 +31,7 @@ GBAApp::GBAApp(int& argc, char* argv[])
 	m_window.show();
 #endif
 
-	GBAArguments args = {};
+	GBAArguments args;
 	if (m_configController.parseArguments(&args, argc, argv)) {
 		m_window.argumentsPassed(&args);
 	} else {
diff --git a/src/platform/sdl/main.c b/src/platform/sdl/main.c
index 31cede4d5..441cc23b8 100644
--- a/src/platform/sdl/main.c
+++ b/src/platform/sdl/main.c
@@ -52,8 +52,8 @@ int main(int argc, char** argv) {
 	};
 	GBAConfigLoadDefaults(&config, &opts);
 
-	struct GBAArguments args = {};
-	struct GraphicsOpts graphicsOpts = {};
+	struct GBAArguments args;
+	struct GraphicsOpts graphicsOpts;
 
 	struct SubParser subparser;