diff --git a/firmware/config/boards/cypress/prepend.txt b/firmware/config/boards/cypress/prepend.txt
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/firmware/config/boards/proteus/prepend.txt b/firmware/config/boards/proteus/prepend.txt
index 3fd77ce938..fa1f4b8774 100644
--- a/firmware/config/boards/proteus/prepend.txt
+++ b/firmware/config/boards/proteus/prepend.txt
@@ -27,9 +27,3 @@
 
 #define CLT_TIMING_CURVE_SIZE 3
 #define IAT_IGN_CORR_COUNT 4
-
-! f4 does not like this #define LUA_SCRIPT_SIZE 32000
-! TODO what we need is a way to define one LUA_SCRIPT_SIZE for F4 and different one for F7
-! todo: maybe some integration between meta_info and prepend?
-#define LUA_SCRIPT_SIZE 13500
-
diff --git a/firmware/config/boards/proteus/prepend_proteus_f4.txt b/firmware/config/boards/proteus/prepend_proteus_f4.txt
new file mode 100644
index 0000000000..db189682aa
--- /dev/null
+++ b/firmware/config/boards/proteus/prepend_proteus_f4.txt
@@ -0,0 +1 @@
+#define LUA_SCRIPT_SIZE 13500
\ No newline at end of file
diff --git a/firmware/config/boards/proteus/prepend_proteus_f7.txt b/firmware/config/boards/proteus/prepend_proteus_f7.txt
new file mode 100644
index 0000000000..3dae7942d2
--- /dev/null
+++ b/firmware/config/boards/proteus/prepend_proteus_f7.txt
@@ -0,0 +1 @@
+#define LUA_SCRIPT_SIZE 32000
\ No newline at end of file