diff --git a/core/time/perf.odin b/core/time/perf.odin
index e51b17441..69f7eceaa 100644
--- a/core/time/perf.odin
+++ b/core/time/perf.odin
@@ -56,6 +56,12 @@ when ODIN_ARCH == .amd64 {
 	}
 }
 
+when ODIN_OS != .Darwin && ODIN_OS != .Linux && ODIN_OS != .FreeBSD {
+	_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
+		return 0, false
+	}
+}
+
 has_invariant_tsc :: proc "contextless" () -> bool {
 	when ODIN_ARCH == .amd64 {
 		return x86_has_invariant_tsc()
diff --git a/core/time/tsc_openbsd.odin b/core/time/tsc_openbsd.odin
deleted file mode 100644
index ab126d5c1..000000000
--- a/core/time/tsc_openbsd.odin
+++ /dev/null
@@ -1,7 +0,0 @@
-//+private
-//+build openbsd
-package time
-
-_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
-	return 0, false
-}
diff --git a/core/time/tsc_windows.odin b/core/time/tsc_windows.odin
deleted file mode 100644
index 7f7be6393..000000000
--- a/core/time/tsc_windows.odin
+++ /dev/null
@@ -1,7 +0,0 @@
-//+private
-//+build windows
-package time
-
-_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
-	return 0, false
-}