diff --git a/src/native/linux/Window.h b/src/native/linux/Window.h
index 869500e5..71390d36 100644
--- a/src/native/linux/Window.h
+++ b/src/native/linux/Window.h
@@ -122,6 +122,11 @@
 	/*
 	 * Return true if we are in fullscreen mode
 	 */
+	extern bool isFullscreen(void);
+	
+	/*
+	 * Return true if we are in exclusive fullscreen mode
+	 */
 	extern bool isLegacyFullscreen(void);
 
 	/*
diff --git a/src/native/linux/org_lwjgl_input_Mouse.c b/src/native/linux/org_lwjgl_input_Mouse.c
index 77ce16f5..8061ac39 100644
--- a/src/native/linux/org_lwjgl_input_Mouse.c
+++ b/src/native/linux/org_lwjgl_input_Mouse.c
@@ -168,7 +168,7 @@ static void ungrabPointer(void) {
 void updatePointerGrab(void) {
 	if (!created)
 		return;
-	if (isLegacyFullscreen() || shouldGrab()) {
+	if (isFullscreen() || shouldGrab()) {
 		grabPointer();
 	} else {
 		ungrabPointer();
diff --git a/src/native/linux/org_lwjgl_opengl_Display.c b/src/native/linux/org_lwjgl_opengl_Display.c
index d1ee1b6d..606a0e58 100644
--- a/src/native/linux/org_lwjgl_opengl_Display.c
+++ b/src/native/linux/org_lwjgl_opengl_Display.c
@@ -223,6 +223,10 @@ static void acquireInput(void) {
 	}
 }
 
+bool isFullscreen(void) {
+	return current_window_mode == FULLSCREEN_LEGACY || current_window_mode == FULLSCREEN_NETWM;
+}
+
 bool isLegacyFullscreen(void) {
 	return current_window_mode == FULLSCREEN_LEGACY;
 }