diff --git a/Makefile b/Makefile
index 2822c09..26a3bf9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 all:
-	gcc -o texec texec.c -lX11 -lpng
+	gcc -Wall -o texec texec.c -lX11 -lpng
 
 clean:
 	rm -rf texec
diff --git a/texec.c b/texec.c
index d88f4e4..bae70d8 100644
--- a/texec.c
+++ b/texec.c
@@ -1,30 +1,29 @@
 /*
+ * texec.c - Minimal X11 tray applet with mandatory PNG icon (32x32)
+ *
  * Copyright 2025 Johannes Findeisen <you@hanez.org>
  * Licensed under the terms of the Apache-2.0 license.
  * https://opensource.org/license/apache-2-0
  *
- * .c - Minimal X11 tray applet with mandatory PNG icon (32x32)
- *
  * Compile:
- *   gcc -o gexec_xembed gexec_xembed.c -lX11 -lXrender -lpng
+ *   gcc -o texec.c -lX11 -lpng
  *
  * Usage:
- *   ./gexec_xembed "<command>" <icon.png>
+ *   ./texec "<command>" <icon.png>
  *
  * Left-click: execute command
  * Right-click: quit applet
  */
 
-#include <X11/Xlib.h>
-#include <X11/Xatom.h>
-#include <X11/Xutil.h>
-//#include <X11/extensions/Xrender.h>
 #include <png.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
 #include <signal.h>
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
 
 #define WIDTH 24
 #define HEIGHT 24
@@ -32,14 +31,14 @@
 static Display *dpy;
 static int screen;
 static Window icon_win;
-static char *g_command;
+static char *x_command;
 
 void execute_command() {
-    if (!g_command) return;
+    if (!x_command) return;
     pid_t pid = fork();
     if (pid == 0) {
         setsid();
-        execl("/bin/sh", "sh", "-c", g_command, (char *)NULL);
+        execl("/bin/sh", "sh", "-c", x_command, (char *)NULL);
         _exit(127);
     }
 }
@@ -112,7 +111,7 @@ int main(int argc, char *argv[]) {
         fprintf(stderr,"Usage: %s <command> <icon.png>\n",argv[0]);
         return 1;
     }
-    g_command = argv[1];
+    x_command = argv[1];
     char *icon_path = argv[2];
 
     signal(SIGCHLD, SIG_IGN);
@@ -158,8 +157,11 @@ int main(int argc, char *argv[]) {
         if (xev.xany.window == icon_win) {
             if (xev.type == Expose) draw_icon(icon_win, icon_path);
             else if (xev.type == ButtonPress) {
-                if (xev.xbutton.button == 1) execute_command(); // left-click
-                else if (xev.xbutton.button == 3) break;        // right-click: quit
+                if (xev.xbutton.button == 1) {
+                    execute_command(); // left-click
+                } else if (xev.xbutton.button == 3) {
+                    break; // right-click: quit
+                }
             }
         }
     }