diff --git a/Makefile b/Makefile
index 3db5ade..9caa9ca 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION   := git-20161129
+VERSION   := git-20161201
 
 PREFIX    := /usr/local
 MANPREFIX := $(PREFIX)/share/man
diff --git a/commands.c b/commands.c
index 7b0f457..44a6cf5 100644
--- a/commands.c
+++ b/commands.c
@@ -429,8 +429,8 @@ bool ci_slideshow(arg_t _)
 {
 	if (prefix > 0) {
 		img.ss.on = true;
-		img.ss.delay = prefix;
-		set_timeout(slideshow, img.ss.delay * 1000, true);
+		img.ss.delay = prefix * 10;
+		set_timeout(slideshow, img.ss.delay * 100, true);
 	} else if (img.ss.on) {
 		img.ss.on = false;
 		reset_timeout(slideshow);
diff --git a/image.c b/image.c
index dd37207..6967b3d 100644
--- a/image.c
+++ b/image.c
@@ -76,7 +76,7 @@ void img_init(img_t *img, win_t *win)
 	img->gamma = MIN(MAX(options->gamma, -GAMMA_RANGE), GAMMA_RANGE);
 
 	img->ss.on = options->slideshow > 0;
-	img->ss.delay = options->slideshow > 0 ? options->slideshow : SLIDESHOW_DELAY;
+	img->ss.delay = options->slideshow > 0 ? options->slideshow : SLIDESHOW_DELAY * 10;
 }
 
 #if HAVE_LIBEXIF
diff --git a/main.c b/main.c
index 131fdec..8f61ee7 100644
--- a/main.c
+++ b/main.c
@@ -371,8 +371,12 @@ void update_info(void)
 		bar_put(r, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
 	} else {
 		bar_put(r, "%s", mark);
-		if (img.ss.on)
-			bar_put(r, "%ds | ", img.ss.delay);
+		if (img.ss.on) {
+			if (img.ss.delay % 10 != 0)
+				bar_put(r, "%2.1fs | ", (float)img.ss.delay / 10);
+			else
+				bar_put(r, "%ds | ", img.ss.delay / 10);
+		}
 		if (img.gamma != 0)
 			bar_put(r, "G%+d | ", img.gamma);
 		bar_put(r, "%3d%% | ", (int) (img.zoom * 100.0));
@@ -403,7 +407,7 @@ void redraw(void)
 	if (mode == MODE_IMAGE) {
 		img_render(&img);
 		if (img.ss.on) {
-			t = img.ss.delay * 1000;
+			t = img.ss.delay * 100;
 			if (img.multi.cnt > 0 && img.multi.animate)
 				t = MAX(t, img.multi.length);
 			set_timeout(slideshow, t, false);
diff --git a/options.c b/options.c
index 5220330..258dc37 100644
--- a/options.c
+++ b/options.c
@@ -136,7 +136,7 @@ void parse_options(int argc, char **argv)
 				_options.recursive = true;
 				break;
 			case 'S':
-				n = strtol(optarg, &end, 0);
+				n = strtof(optarg, &end) * 10;
 				if (*end != '\0' || n <= 0)
 					error(EXIT_FAILURE, 0, "Invalid argument for option -S: %s", optarg);
 				_options.slideshow = n;
diff --git a/sxiv.1 b/sxiv.1
index 56841e8..d82be81 100644
--- a/sxiv.1
+++ b/sxiv.1
@@ -87,7 +87,11 @@ Be quiet, disable warnings to standard error stream.
 Search the given directories recursively for images to view.
 .TP
 .BI "\-S " DELAY
-Start in slideshow mode. Set the delay between images to DELAY seconds.
+Start in slideshow mode. Set the delay between images to
+.I DELAY
+seconds.
+.I DELAY
+may be a floating point number.
 .TP
 .BI "\-s " MODE
 Set scale mode according to MODE character. Supported modes are: [d]own,