diff --git a/src/platform/sdl/gl-sdl.c b/src/platform/sdl/gl-sdl.c
index 489483026..f43156def 100644
--- a/src/platform/sdl/gl-sdl.c
+++ b/src/platform/sdl/gl-sdl.c
@@ -160,5 +160,5 @@ void GBASDLRunloop(struct GBAThread* context, struct SDLSoftwareRenderer* render
 }
 
 void GBASDLDeinit(struct SDLSoftwareRenderer* renderer) {
-	UNUSED(renderer);
+	free(renderer->d.outputBuffer);
 }
diff --git a/src/platform/sdl/main.c b/src/platform/sdl/main.c
index 4f4dc581b..71911c29b 100644
--- a/src/platform/sdl/main.c
+++ b/src/platform/sdl/main.c
@@ -143,8 +143,6 @@ static bool _GBASDLInit(struct SDLSoftwareRenderer* renderer) {
 }
 
 static void _GBASDLDeinit(struct SDLSoftwareRenderer* renderer) {
-	free(renderer->d.outputBuffer);
-
 	GBASDLDeinitEvents(&renderer->events);
 	GBASDLDeinitAudio(&renderer->audio);
 #if SDL_VERSION_ATLEAST(2, 0, 0)
diff --git a/src/platform/sdl/sw-sdl.c b/src/platform/sdl/sw-sdl.c
index e147c1651..f35252e0b 100644
--- a/src/platform/sdl/sw-sdl.c
+++ b/src/platform/sdl/sw-sdl.c
@@ -123,7 +123,9 @@ void GBASDLRunloop(struct GBAThread* context, struct SDLSoftwareRenderer* render
 }
 
 void GBASDLDeinit(struct SDLSoftwareRenderer* renderer) {
-	UNUSED(renderer);
+	if (renderer->ratio > 1) {
+		free(renderer->d.outputBuffer);
+	}
 #if !SDL_VERSION_ATLEAST(2, 0, 0)
 	SDL_Surface* surface = SDL_GetVideoSurface();
 	SDL_UnlockSurface(surface);