diff --git a/lib/process/const_linux_arm.q b/lib/process/const_linux_arm.q
index b3f8929..434c94c 100644
--- a/lib/process/const_linux_arm.q
+++ b/lib/process/const_linux_arm.q
@@ -1,5 +1,6 @@
 const {
 	_clone = 220
 	_execve = 221
+	_getpid = 172
 	_wait4 = 260
 }
\ No newline at end of file
diff --git a/lib/process/const_linux_x86.q b/lib/process/const_linux_x86.q
index 9ac338a..2ac4d11 100644
--- a/lib/process/const_linux_x86.q
+++ b/lib/process/const_linux_x86.q
@@ -1,5 +1,6 @@
 const {
 	_clone = 56
 	_execve = 59
+	_getpid = 39
 	_wait4 = 61
 }
\ No newline at end of file
diff --git a/lib/process/fork_mac.q b/lib/process/fork_mac.q
index f6bb188..3c7d9e7 100644
--- a/lib/process/fork_mac.q
+++ b/lib/process/fork_mac.q
@@ -1,13 +1,9 @@
 fork() -> int {
 	pid := syscall(_fork)
 
-	if pid == getpid() {
+	if pid == id() {
 		return 0
 	}
 
 	return pid
-}
-
-getpid() -> int {
-	return syscall(_getpid)
 }
\ No newline at end of file
diff --git a/lib/process/id_unix.q b/lib/process/id_unix.q
new file mode 100644
index 0000000..2210ed4
--- /dev/null
+++ b/lib/process/id_unix.q
@@ -0,0 +1,3 @@
+id() -> int {
+	return syscall(_getpid)
+}
\ No newline at end of file
diff --git a/lib/process/id_windows.q b/lib/process/id_windows.q
new file mode 100644
index 0000000..2badc52
--- /dev/null
+++ b/lib/process/id_windows.q
@@ -0,0 +1,9 @@
+id() -> int {
+	return kernel32.GetCurrentProcessId()
+}
+
+extern {
+	kernel32 {
+		GetCurrentProcessId() -> int
+	}
+}
\ No newline at end of file