diff --git a/src/render/triangle.c b/src/render/triangle.c
index 94bd5d7..016006e 100644
--- a/src/render/triangle.c
+++ b/src/render/triangle.c
@@ -8,13 +8,13 @@
 #include <gint/display.h>
 #include <gint/clock.h>
 
-static uint32_t frame_interval_min;
-static uint32_t frame_interval_max;
 
 void render_update(const uint32_t libprof_channel)
 {
     //dupdate();
-
+#ifdef USE_LIBPROF
+    static uint32_t frame_interval_min=1000000;
+    static uint32_t frame_interval_max=1;
     // gestion du temps avec libprof
     if (prof_elapsed)
     {
@@ -33,7 +33,7 @@ void render_update(const uint32_t libprof_channel)
     //dupdate();
     prof_clear(libprof_channel);
     prof_enter(libprof_channel);
-
+#endif
     render_zbuffer_clear();
 
     ///render_set(dh, dv, roulis, camera);