diff --git a/examples/Makefile.Web b/examples/Makefile.Web
index b9e00ea5d..d083b34e3 100644
--- a/examples/Makefile.Web
+++ b/examples/Makefile.Web
@@ -599,6 +599,7 @@ core/core_vr_simulator: core/core_vr_simulator.c
     --preload-file core/resources/distortion100.fs@resources/distortion100.fs
 
 # NOTE: To use multi-threading raylib must be compiled with multi-theading support (-s USE_PTHREADS=1)
+# WARNING: For security reasons multi-threading is not supported on browsers, it requires cross-origin isolation (Oct.2021)
 core/core_loading_thread: core/core_loading_thread.c
 	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM) -s USE_PTHREADS=1
 
@@ -1005,21 +1006,20 @@ audio/audio_multichannel_sound: audio/audio_multichannel_sound.c
     --preload-file audio/resources/target.ogg@resources/target.ogg
 
 # Compile PHYSICS examples
-# NOTE: To use multi-threading raylib must be compiled with multi-theading support (-s USE_PTHREADS=1)
 physics/physics_demo: physics/physics_demo.c
-	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -static -lpthread -D$(PLATFORM) -s USE_PTHREADS=1
+	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM) -DPHYSAC_AVOID_TIMMING_SYSTEM
 
 physics/physics_friction: physics/physics_friction.c
-	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -static -lpthread -D$(PLATFORM) -s USE_PTHREADS=1
+	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM) -DPHYSAC_AVOID_TIMMING_SYSTEM
 
 physics/physics_movement: physics/physics_movement.c
-	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -static -lpthread -D$(PLATFORM) -s USE_PTHREADS=1
+	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM) -DPHYSAC_AVOID_TIMMING_SYSTEM
 
 physics/physics_restitution: physics/physics_restitution.c
-	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -static -lpthread -D$(PLATFORM) -s USE_PTHREADS=1
+	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM) -DPHYSAC_AVOID_TIMMING_SYSTEM
 
 physics/physics_shatter: physics/physics_shatter.c
-	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -static -lpthread -D$(PLATFORM) -s USE_PTHREADS=1
+	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM) -DPHYSAC_AVOID_TIMMING_SYSTEM
 
 
 # Clean everything