diff --git a/make_filepaths.sh b/make_filepaths.sh
index a4a33a5..bba074f 100755
--- a/make_filepaths.sh
+++ b/make_filepaths.sh
@@ -46,5 +46,6 @@ printf '%s\n}\n' "$LEVEL_ARRAY"
 # Create headers
 cd "$START_POS"
 mkdir -p generated/include
+printf '#define LEVEL_COUNT %s\n' "$LEVEL_COUNT" > generated/include/pack_count.h
 [ "$((LEVEL_COUNT % 4))" != 0 ] && LEVEL_COUNT="$((LEVEL_COUNT + 4 - LEVEL_COUNT % 4))"
-printf '#define PACK_COUNT %s\n' "$((LEVEL_COUNT / 4))" > generated/include/pack_count.h
+printf '#define PACK_COUNT %s\n' "$((LEVEL_COUNT / 4))" >> generated/include/pack_count.h
diff --git a/src/level/load.c b/src/level/load.c
index 17b3f82..d63e1eb 100644
--- a/src/level/load.c
+++ b/src/level/load.c
@@ -3,6 +3,7 @@
 
 #include "conf.h"
 #include "level.h"
+#include "pack_count.h"
 #include "tiles.h"
 #include <gint/bfile.h>
 #include <gint/std/stdlib.h>
@@ -89,9 +90,13 @@ void
 level_load_binary(void)
 {
 	extern uint8_t *level_binaries[];
-	uint8_t *level_binary = level_binaries[level_id];
+	uint8_t *level_binary;
 	int i;
 
+	assert(level_id < LEVEL_COUNT, "level doesn't exist");
+
+	level_binary = level_binaries[level_id];
+
 	i = LEVEL_SIZE;
 	while (i-- > 0)
 		level.data[i] = level_binary[KBLE_HEADER_LEN + i];