diff --git a/Makefile.am b/Makefile.am
index f437b90..77bfe12 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -47,11 +47,11 @@ lsyncd_LDADD += luac.o
 
 luac.o: luac.c
 
+luac.c: luac.out bin2carray.lua
+	lua ./bin2carray.lua luac.out luac luac.c
+
 luac.out: lsyncd.lua
 	luac $<
 
-luac.c: lsyncd.lua bin2carray.lua
-	lua ./bin2carray.lua lsyncd.lua luac luac.c
-
 endif
 
diff --git a/bin2carray.lua b/bin2carray.lua
index b216b5a..9d18937 100755
--- a/bin2carray.lua
+++ b/bin2carray.lua
@@ -26,7 +26,7 @@ end
 
 fout:write("/* created by "..arg[0].." from file "..arg[1].." */\n")
 fout:write("#include <stddef.h>\n")
-fout:write("const unsigned char "..arg[2].."_out[] = {\n")
+fout:write("const char "..arg[2].."_out[] = {\n")
 while true do
 	local block = fin:read(16)
 	if block == nil then
diff --git a/lsyncd.c b/lsyncd.c
index 82dea2a..5132804 100644
--- a/lsyncd.c
+++ b/lsyncd.c
@@ -45,7 +45,7 @@
  * The Lua part of lsyncd if compiled into the binary.
  */
 #ifndef LSYNCD_DEFAULT_RUNNER_FILE
-	extern unsigned char * luac_out;
+	extern const char luac_out[];
 	extern size_t luac_size;
 #endif