diff --git a/resources/data/patches_factory/Tutorials/Formula Modulator/12 A Slew Limiter.fxp b/resources/data/patches_factory/Tutorials/Formula Modulator/12 A Slew Limiter.fxp
new file mode 100644
index 00000000000..07ea8eb810b
Binary files /dev/null and b/resources/data/patches_factory/Tutorials/Formula Modulator/12 A Slew Limiter.fxp differ
diff --git a/src/common/dsp/modulators/FormulaModulationHelper.cpp b/src/common/dsp/modulators/FormulaModulationHelper.cpp
index ad515ac9111..048e77fa58f 100644
--- a/src/common/dsp/modulators/FormulaModulationHelper.cpp
+++ b/src/common/dsp/modulators/FormulaModulationHelper.cpp
@@ -205,6 +205,14 @@ end
 
         lua_settable(s.L, -3);
 
+        lua_pushstring(s.L, "samplerate");
+        lua_pushnumber(s.L, samplerate);
+        lua_settable(s.L, -3);
+
+        lua_pushstring(s.L, "block_size");
+        lua_pushnumber(s.L, BLOCK_SIZE);
+        lua_settable(s.L, -3);
+
         if (lua_isfunction(s.L, -2))
         {
             auto cres = lua_pcall(s.L, 1, 1, 0);