Added a missing 'return' in case statement.

diff --git a/src/Main/keyboard.cxx b/src/Main/keyboard.cxx
index 51ae40a7c9a47384d31e2d1e495305332b7d18fc..4b8d6556e98961d18918dfdd8311ec84e427ed1a 100644 (file)
--- a/src/Main/keyboard.cxx
+++ b/src/Main/keyboard.cxx
@@ -564,6 +564,7 @@ void GLUTspecialkey(int k, int x, int y) {
            return;
         case GLUT_KEY_F4: // F4 Update lighting manually
            fgUpdateSkyAndLightingParams();
+            return;
         case GLUT_KEY_F6: // F6 toggles Autopilot target location
            if ( current_autopilot->get_HeadingMode() !=
                 FGAutopilot::FG_HEADING_WAYPOINT ) {