diff --git a/firmware/global.h b/firmware/global.h
index 40774fae51..d69685f165 100644
--- a/firmware/global.h
+++ b/firmware/global.h
@@ -52,8 +52,12 @@ typedef unsigned int time_t;
 #define VALUE(x) VALUE_TO_STRING(x)
 #define VAR_NAME_VALUE(var) #var "="  VALUE(var)
 
-// project-wide default thread stack size
-// see also PORT_INT_REQUIRED_STACK
+/**
+ * project-wide default thread stack size
+ * See also PORT_INT_REQUIRED_STACK
+ * See getRemainingStack()
+ * See getMaxUsedStack()
+ */
 #define UTILITY_THREAD_STACK_SIZE 400
 
 #define EFI_ERROR_CODE 0xffffffff
diff --git a/firmware/util/efilib2.cpp b/firmware/util/efilib2.cpp
index f5e258a077..ded927ce9c 100644
--- a/firmware/util/efilib2.cpp
+++ b/firmware/util/efilib2.cpp
@@ -40,6 +40,9 @@ efitime_t Overflow64Counter::update(uint32_t value) {
 }
 #endif
 
+/**
+ * See also getRemainingStack()
+ */
 int getMaxUsedStack(uint8_t *ptr, int size) {
 	/**
 	 * maximum used stack size total stack buffer size minus position of first modified byte