diff --git a/src/tree.c b/src/tree.c
index f86ae312..baa11ced 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -180,7 +180,11 @@ void tree_close(Con *con, bool kill_window, bool dont_kill_parent) {
     x_con_kill(con);
 
     con_detach(con);
-    con_fix_percent(parent, WINDOW_REMOVE);
+    if (con->type != CT_FLOATING_CON) {
+        /* If the container is *not* floating, we might need to re-distribute
+         * percentage values for the resized containers. */
+        con_fix_percent(parent, WINDOW_REMOVE);
+    }
 
     if (con_is_floating(con)) {
         DLOG("Container was floating, killing floating container\n");
diff --git a/testcases/t/44-regress-floating-resize.t b/testcases/t/44-regress-floating-resize.t
new file mode 100644
index 00000000..d7102cec
--- /dev/null
+++ b/testcases/t/44-regress-floating-resize.t
@@ -0,0 +1,38 @@
+#!perl
+# vim:ts=4:sw=4:expandtab
+#
+# Regression: when resizing two containers on a workspace, opening a floating
+# client, then closing it again, i3 will re-distribute the space on the
+# workspace as if a tiling container was closed, leading to the containers
+# taking much more space than they possibly could.
+#
+use i3test tests => 1;
+use X11::XCB qw(:all);
+use Time::HiRes qw(sleep);
+use List::Util qw(sum);
+
+my $tmp = get_unused_workspace();
+cmd "workspace $tmp";
+
+cmd 'exec /usr/bin/urxvt';
+sleep 0.5;
+cmd 'exec /usr/bin/urxvt';
+sleep 0.5;
+my ($nodes, $focus) = get_ws_content($tmp);
+my $old_sum = sum map { $_->{rect}->{width} } @{$nodes};
+#cmd 'open';
+cmd 'resize grow left 10 px or 25 ppt';
+cmd 'split v';
+#cmd 'open';
+cmd 'exec /usr/bin/urxvt';
+sleep 0.5;
+cmd 'mode toggle';
+sleep 0.5;
+cmd 'kill';
+
+sleep 0.5;
+
+($nodes, $focus) = get_ws_content($tmp);
+my $new_sum = sum map { $_->{rect}->{width} } @{$nodes};
+
+is($old_sum, $new_sum, 'combined container width is still equal');