diff --git a/include/modules/custom.hpp b/include/modules/custom.hpp
index dcab363c..bb0204fd 100644
--- a/include/modules/custom.hpp
+++ b/include/modules/custom.hpp
@@ -17,6 +17,7 @@ class Custom : public ALabel {
 
     const std::string name_;
     waybar::util::SleeperThread thread_;
+    waybar::util::command::res output_;
 };
 
 }
diff --git a/include/util/command.hpp b/include/util/command.hpp
index 80773cb5..18069580 100644
--- a/include/util/command.hpp
+++ b/include/util/command.hpp
@@ -4,12 +4,12 @@
 
 namespace waybar::util::command {
 
-struct cmd_res {
+struct res {
   int exit_code;
   std::string out;
 };
 
-inline struct cmd_res exec(const std::string cmd)
+inline struct res exec(const std::string cmd)
 {
   FILE* fp(popen(cmd.c_str(), "r"));
   if (!fp) {
diff --git a/src/modules/custom.cpp b/src/modules/custom.cpp
index ccb9e4d2..a47d5085 100644
--- a/src/modules/custom.cpp
+++ b/src/modules/custom.cpp
@@ -24,6 +24,7 @@ void waybar::modules::Custom::worker()
       }
     }
     if (can_update) {
+      output_ = waybar::util::command::exec(config_["exec"].asString());
       dp.emit();
     }
     thread_.sleep_for(chrono::seconds(interval));
@@ -32,17 +33,15 @@ void waybar::modules::Custom::worker()
 
 auto waybar::modules::Custom::update() -> void
 {
-  auto res = waybar::util::command::exec(config_["exec"].asString());
-
   // Hide label if output is empty
-  if (res.out.empty() || res.exit_code != 0) {
+  if (output_.out.empty() || output_.exit_code != 0) {
     label_.hide();
     label_.set_name("");
   } else {
     label_.set_name("custom-" + name_);
-    auto str = fmt::format(format_, res.out);
+    auto str = fmt::format(format_, output_.out);
     label_.set_text(str);
     label_.set_tooltip_text(str);
     label_.show();
   }
-}
+}
\ No newline at end of file