diff --git a/src/app.rs b/src/app.rs
index 750fa240..8af3c7ec 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -143,16 +143,26 @@ pub struct App {
     pub filters: DataFilters,
 }
 
-// TODO: Should probably set a fallback max signal/not supported for this.
-#[cfg(target_os = "windows")]
-const MAX_SIGNAL: usize = 1;
-#[cfg(target_os = "linux")]
-const MAX_SIGNAL: usize = 64;
-#[cfg(target_os = "macos")]
-const MAX_SIGNAL: usize = 31;
-// https://www.freebsd.org/cgi/man.cgi?query=signal&apropos=0&sektion=3&manpath=FreeBSD+13.1-RELEASE+and+Ports&arch=default&format=html
-#[cfg(target_os = "freebsd")]
-const MAX_SIGNAL: usize = 33;
+cfg_if::cfg_if! {
+    if #[cfg(target_os = "linux")] {
+        /// The max signal we can send to a process on Linux.
+        pub const MAX_PROCESS_SIGNAL: usize = 64;
+    } else if #[cfg(target_os = "macos")] {
+        /// The max signal we can send to a process on macOS.
+        pub const MAX_PROCESS_SIGNAL: usize = 31;
+    } else if #[cfg(target_os = "freebsd")] {
+        /// The max signal we can send to a process on FreeBSD.
+        /// See [https://www.freebsd.org/cgi/man.cgi?query=signal&apropos=0&sektion=3&manpath=FreeBSD+13.1-RELEASE+and+Ports&arch=default&format=html]
+        /// for more details.
+        pub const MAX_PROCESS_SIGNAL: usize = 33;
+    } else if #[cfg(target_os = "windows")] {
+        /// The max signal we can send to a process. For Windows, we only have support for one signal (kill).
+        pub const MAX_PROCESS_SIGNAL: usize = 1;
+    } else {
+        /// The max signal we can send to a process. As a fallback, we only support one signal (kill).
+        pub const MAX_PROCESS_SIGNAL: usize = 1;
+    }
+}
 
 impl App {
     pub fn reset(&mut self) {
@@ -811,7 +821,7 @@ impl App {
         if self.delete_dialog_state.is_showing_dd {
             let mut new_signal = match self.delete_dialog_state.selected_signal {
                 KillSignal::Cancel => 8,
-                KillSignal::Kill(signal) => min(signal + 8, MAX_SIGNAL),
+                KillSignal::Kill(signal) => min(signal + 8, MAX_PROCESS_SIGNAL),
             };
             if new_signal > 31 && new_signal < 42 {
                 new_signal += 2;
@@ -1930,7 +1940,7 @@ impl App {
             self.help_dialog_state.scroll_state.current_scroll_index =
                 self.help_dialog_state.scroll_state.max_scroll_index;
         } else if self.delete_dialog_state.is_showing_dd {
-            self.delete_dialog_state.selected_signal = KillSignal::Kill(MAX_SIGNAL);
+            self.delete_dialog_state.selected_signal = KillSignal::Kill(MAX_PROCESS_SIGNAL);
         }
     }
 
diff --git a/src/canvas/dialogs/dd_dialog.rs b/src/canvas/dialogs/dd_dialog.rs
index 34470d7f..50756d51 100644
--- a/src/canvas/dialogs/dd_dialog.rs
+++ b/src/canvas/dialogs/dd_dialog.rs
@@ -10,7 +10,7 @@ use tui::{
 };
 
 use crate::{
-    app::{App, KillSignal},
+    app::{App, KillSignal, MAX_PROCESS_SIGNAL},
     canvas::Painter,
     widgets::ProcWidgetMode,
 };
@@ -66,7 +66,7 @@ impl Painter {
     fn draw_dd_confirm_buttons<B: Backend>(
         &self, f: &mut Frame<'_, B>, button_draw_loc: &Rect, app_state: &mut App,
     ) {
-        if cfg!(target_os = "windows") || !app_state.app_config_fields.is_advanced_kill {
+        if MAX_PROCESS_SIGNAL == 1 || !app_state.app_config_fields.is_advanced_kill {
             let (yes_button, no_button) = match app_state.delete_dialog_state.selected_signal {
                 KillSignal::Kill(_) => (
                     Span::styled("Yes", self.colours.currently_selected_text_style),
@@ -135,7 +135,7 @@ impl Painter {
         } else {
             #[cfg(target_family = "unix")]
             {
-                let signal_text;
+                let signal_text: Vec<&str>;
                 #[cfg(target_os = "linux")]
                 {
                     signal_text = vec![
@@ -401,12 +401,19 @@ impl Painter {
                 draw_loc,
             );
 
-            let btn_height =
-                if cfg!(target_os = "windows") || !app_state.app_config_fields.is_advanced_kill {
-                    3
-                } else {
-                    20
-                };
+            let btn_height = {
+                cfg_if::cfg_if! {
+                    if #[cfg(target_os = "windows")] {
+                        3
+                    } else {
+                        if !app_state.app_config_fields.is_advanced_kill {
+                            3
+                        } else {
+                            20
+                        }
+                    }
+                }
+            };
 
             // Now draw buttons if needed...
             let split_draw_loc = Layout::default()