diff --git a/source/src/Makefile b/source/src/Makefile
index 156ce788..53f70f54 100644
--- a/source/src/Makefile
+++ b/source/src/Makefile
@@ -1,5 +1,5 @@
 CXXOPTFLAGS=-O3 -fomit-frame-pointer
-INCLUDES=-I/usr/X11R6/include -I../enet/include `sdl-config --cflags`
+INCLUDES=-I/usr/X11R6/include -I../enet/include -I../src `sdl-config --cflags`
 CXXFLAGS=$(CXXOPTFLAGS) $(INCLUDES) -fsigned-char -Wall -Wno-deprecated
 
 PLATFORM_PREFIX=native
diff --git a/source/src/weapon.cpp b/source/src/weapon.cpp
index 1e48f0f2..36b7cc76 100644
--- a/source/src/weapon.cpp
+++ b/source/src/weapon.cpp
@@ -648,7 +648,8 @@ struct grenadeent : bounceent
 
     void explode()
     {
-        if(bouncestate != NADE_THROWED) owner->weapons[GUN_GRENADE]->attack(vec(0,0,0));
+	static vec n(0,0,0);
+        if(bouncestate != NADE_THROWED) owner->weapons[GUN_GRENADE]->attack(n);
         playsound(S_FEXPLODE, NULL, NULL, &o);
         newprojectile(o, o, 1, owner==player1, owner, GUN_GRENADE, millis);
     }
@@ -1045,4 +1046,4 @@ void checkakimbo()
 	        playsoundc(S_AKIMBOOUT);
         }
     }
-}
\ No newline at end of file
+}