diff --git a/src/win32/monitor.rs b/src/win32/monitor.rs
index a45c8fb1..3e6b79af 100644
--- a/src/win32/monitor.rs
+++ b/src/win32/monitor.rs
@@ -101,7 +101,7 @@ pub fn get_primary_monitor() -> MonitorID {
         }
     }
 
-    fail!("Failed to find the primary monitor")
+    panic!("Failed to find the primary monitor")
 }
 
 impl MonitorID {
diff --git a/src/x11/window/mod.rs b/src/x11/window/mod.rs
index 2f004389..26d5497f 100644
--- a/src/x11/window/mod.rs
+++ b/src/x11/window/mod.rs
@@ -510,7 +510,7 @@ impl Window {
     pub unsafe fn make_current(&self) {
         let res = ffi::glx::MakeCurrent(self.display, self.window, self.context);
         if res == 0 {
-            fail!("glx::MakeCurrent failed");
+            panic!("glx::MakeCurrent failed");
         }
     }
 
diff --git a/src/x11/window/monitor.rs b/src/x11/window/monitor.rs
index 013b48bc..f62a8ef7 100644
--- a/src/x11/window/monitor.rs
+++ b/src/x11/window/monitor.rs
@@ -9,7 +9,7 @@ pub fn get_available_monitors() -> Vec<MonitorID> {
     let nb_monitors = unsafe {
         let display = ffi::XOpenDisplay(ptr::null());
         if display.is_null() {
-            fail!("get_available_monitors failed");
+            panic!("get_available_monitors failed");
         }
         let nb_monitors = ffi::XScreenCount(display);
         ffi::XCloseDisplay(display);
@@ -26,7 +26,7 @@ pub fn get_primary_monitor() -> MonitorID {
     let primary_monitor = unsafe {
         let display = ffi::XOpenDisplay(ptr::null());
         if display.is_null() {
-            fail!("get_available_monitors failed");
+            panic!("get_available_monitors failed");
         }
         let primary_monitor = ffi::XDefaultScreen(display);
         ffi::XCloseDisplay(display);