diff --git a/.gitignore b/.gitignore
index 04b83fc..aa3fd95 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,4 @@
 *io.bit
 *.bak
 /*-test
-/screenshot.bmp
+/screenshot-*.bmp
diff --git a/src/uxnemu.c b/src/uxnemu.c
index 717754b..6ef95c7 100644
--- a/src/uxnemu.c
+++ b/src/uxnemu.c
@@ -92,14 +92,17 @@ static void
 screencapture(void)
 {
 	const Uint32 format = SDL_PIXELFORMAT_ARGB8888;
+	time_t t = time(NULL);
+	char fname[64];
 	int w, h;
 	SDL_Surface *surface;
 	SDL_GetRendererOutputSize(gRenderer, &w, &h);
 	surface = SDL_CreateRGBSurfaceWithFormat(0, w, h, 32, format);
 	SDL_RenderReadPixels(gRenderer, NULL, format, surface->pixels, surface->pitch);
-	SDL_SaveBMP(surface, "screenshot.bmp");
+	strftime(fname, sizeof(fname), "screenshot-%Y%m%d-%H%M%S.bmp", localtime(&t));
+	SDL_SaveBMP(surface, fname);
 	SDL_FreeSurface(surface);
-	fprintf(stderr, "Saved screenshot.bmp\n");
+	fprintf(stderr, "Saved %s\n", fname);
 }
 
 static void