diff --git a/include/util/SafeSignal.hpp b/include/util/SafeSignal.hpp
index afb0893e7..b1e3a91ae 100644
--- a/include/util/SafeSignal.hpp
+++ b/include/util/SafeSignal.hpp
@@ -12,11 +12,6 @@
 #include <type_traits>
 #include <utility>
 
-#ifdef __OpenBSD__
-#define SIGRTMIN SIGUSR1 - 1
-#define SIGRTMAX SIGUSR1 + 1
-#endif
-
 namespace waybar {
 
 /**
diff --git a/src/main.cpp b/src/main.cpp
index 9d7d0ba25..0866a9b79 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -55,9 +55,11 @@ static void catchSignals(waybar::SafeSignal<int>& signal_handler) {
   std::signal(SIGINT, writeSignalToPipe);
   std::signal(SIGCHLD, writeSignalToPipe);
 
+#ifdef SIGRTMIN
   for (int sig = SIGRTMIN + 1; sig <= SIGRTMAX; ++sig) {
     std::signal(sig, writeSignalToPipe);
   }
+#endif
 
   while (true) {
     int signum;
@@ -119,13 +121,15 @@ void handleUserSignal(int signal, bool& reload) {
 // If this signal should restart or close the bar, this function will write
 // `true` or `false`, respectively, into `reload`.
 static void handleSignalMainThread(int signum, bool& reload) {
+#ifdef SIGRTMIN
   if (signum >= SIGRTMIN + 1 && signum <= SIGRTMAX) {
     for (auto& bar : waybar::Client::inst()->bars) {
       bar->handleSignal(signum);
     }
     return;
   }
-
+#endif
+  
   switch (signum) {
     case SIGUSR1:
       handleUserSignal(SIGUSR1, reload);
diff --git a/src/modules/custom.cpp b/src/modules/custom.cpp
index 28def8c9d..99d072de2 100644
--- a/src/modules/custom.cpp
+++ b/src/modules/custom.cpp
@@ -138,9 +138,11 @@ void waybar::modules::Custom::waitingWorker() {
 }
 
 void waybar::modules::Custom::refresh(int sig) {
+#ifdef SIGRTMIN
   if (config_["signal"].isInt() && sig == SIGRTMIN + config_["signal"].asInt()) {
     thread_.wake_up();
   }
+#endif
 }
 
 void waybar::modules::Custom::handleEvent() {
diff --git a/src/modules/image.cpp b/src/modules/image.cpp
index 98bf3c46f..48729cc4a 100644
--- a/src/modules/image.cpp
+++ b/src/modules/image.cpp
@@ -46,9 +46,11 @@ void waybar::modules::Image::delayWorker() {
 }
 
 void waybar::modules::Image::refresh(int sig) {
+#ifdef SIGRTMIN
   if (config_["signal"].isInt() && sig == SIGRTMIN + config_["signal"].asInt()) {
     thread_.wake_up();
   }
+#endif
 }
 
 auto waybar::modules::Image::update() -> void {