diff --git a/kernel/include/process.hpp b/kernel/include/process.hpp
index f149084b..b690bbfe 100644
--- a/kernel/include/process.hpp
+++ b/kernel/include/process.hpp
@@ -16,6 +16,12 @@
 
 namespace scheduler {
 
+constexpr const size_t MAX_PRIORITY = 2;
+constexpr const size_t MIN_PRIORITY = 0;
+constexpr const size_t PRIORITY_LEVELS = MAX_PRIORITY - MIN_PRIORITY + 1;
+
+typedef size_t pid_t;
+
 enum class process_state : char {
     EMPTY = 0,
     NEW = 1,
@@ -30,7 +36,7 @@ struct segment_t {
 };
 
 struct process_t {
-    size_t pid;
+    pid_t pid;
 
     bool system;
 
diff --git a/kernel/include/scheduler.hpp b/kernel/include/scheduler.hpp
index ac611383..fd83f2ca 100644
--- a/kernel/include/scheduler.hpp
+++ b/kernel/include/scheduler.hpp
@@ -13,8 +13,6 @@
 
 namespace scheduler {
 
-typedef size_t pid_t;
-
 constexpr const size_t MAX_PROCESS = 128;
 
 pid_t get_pid();
diff --git a/kernel/src/keyboard.cpp b/kernel/src/keyboard.cpp
index d9521ca5..b27ed20f 100644
--- a/kernel/src/keyboard.cpp
+++ b/kernel/src/keyboard.cpp
@@ -139,7 +139,7 @@ void keyboard::get_char_blocking(){
         start = (start + 1) % BUFFER_SIZE;
         --count;
 
-        auto pid = scheduler::current_pid();
+        auto pid = scheduler::get_pid();
 
         //TODO Give key to process pid
     } else {