diff --git a/include/config.h b/include/config.h
index 9e59cb66e..d591daf2a 100644
--- a/include/config.h
+++ b/include/config.h
@@ -232,7 +232,6 @@ struct sway_config {
 	int32_t floating_maximum_height;
 	int32_t floating_minimum_width;
 	int32_t floating_minimum_height;
-	char *floating_minimum_size;
 };
 
 /**
diff --git a/sway/config.c b/sway/config.c
index b4e740f6b..95285eba6 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -178,8 +178,6 @@ static void config_defaults(struct sway_config *config) {
 	config->floating_minimum_width = 75;
 	config->floating_minimum_height = 50;
 
-	config->floating_minimum_size = strdup("");
-
 	// Flags
 	config->focus_follows_mouse = true;
 	config->mouse_warping = true;