diff --git a/src/animation/client.h b/src/animation/client.h
index e1fc551..a1d7a62 100644
--- a/src/animation/client.h
+++ b/src/animation/client.h
@@ -618,7 +618,9 @@ void fadeout_client_animation_next_tick(Client *c) {
 	BufferData buffer_data;
 
 	double animation_passed =
-		(double)c->animation.passed_frames / c->animation.total_frames;
+		c->animation.total_frames
+			? (double)c->animation.passed_frames / c->animation.total_frames
+			: 1.0;
 	int type = c->animation.action = c->animation.action;
 	double factor = find_animation_curve_at(animation_passed, type);
 	unsigned int width =
@@ -674,7 +676,9 @@ void fadeout_client_animation_next_tick(Client *c) {
 
 void client_animation_next_tick(Client *c) {
 	double animation_passed =
-		(double)c->animation.passed_frames / c->animation.total_frames;
+		c->animation.total_frames
+			? (double)c->animation.passed_frames / c->animation.total_frames
+			: 1.0;
 
 	int type = c->animation.action == NONE ? MOVE : c->animation.action;
 	double factor = find_animation_curve_at(animation_passed, type);
diff --git a/src/animation/layer.h b/src/animation/layer.h
index 755b3e0..3b81fc2 100644
--- a/src/animation/layer.h
+++ b/src/animation/layer.h
@@ -235,7 +235,9 @@ void fadeout_layer_animation_next_tick(LayerSurface *l) {
 		return;
 
 	double animation_passed =
-		(double)l->animation.passed_frames / l->animation.total_frames;
+		l->animation.total_frames
+			? (double)l->animation.passed_frames / l->animation.total_frames
+			: 1.0;
 	int type = l->animation.action = l->animation.action;
 	double factor = find_animation_curve_at(animation_passed, type);
 	unsigned int width =
@@ -294,7 +296,9 @@ void layer_animation_next_tick(LayerSurface *l) {
 		return;
 
 	double animation_passed =
-		(double)l->animation.passed_frames / l->animation.total_frames;
+		l->animation.total_frames
+			? (double)l->animation.passed_frames / l->animation.total_frames
+			: 1.0;
 
 	int type = l->animation.action == NONE ? MOVE : l->animation.action;
 	double factor = find_animation_curve_at(animation_passed, type);