diff -uNr fluxbox-1.3.7/util/fluxbox-remote.cc fluxbox-1.3.7.mod/util/fluxbox-remote.cc
--- fluxbox-1.3.7/util/fluxbox-remote.cc	2015-02-08 12:44:45.377187009 +0200
+++ fluxbox-1.3.7.mod/util/fluxbox-remote.cc	2018-06-19 20:52:20.808391222 +0300
@@ -73,7 +73,7 @@
     if (strcmp(cmd, "result") == 0) {
         XTextProperty text_prop;
         if (XGetTextProperty(disp, root, &text_prop, atom_result) != 0
-            && text_prop.value > 0
+            && text_prop.value != NULL
             && text_prop.nitems > 0) {
 
             printf("%s", text_prop.value);