diff --git a/cpu/cpu_darwin.go b/cpu/cpu_darwin.go
index ff27a74..4f7dbde 100644
--- a/cpu/cpu_darwin.go
+++ b/cpu/cpu_darwin.go
@@ -27,7 +27,7 @@ func init() {
 	out, err := exec.Command("/usr/bin/getconf", "CLK_TCK").Output()
 	// ignore errors
 	if err == nil {
-		i, err := strconv.ParseFloat(string(out), 64)
+		i, err := strconv.ParseFloat(strings.TrimSpace(string(out)), 64)
 		if err == nil {
 			ClocksPerSec = float64(i)
 		}
diff --git a/cpu/cpu_freebsd.go b/cpu/cpu_freebsd.go
index c1e542e..2c22a39 100644
--- a/cpu/cpu_freebsd.go
+++ b/cpu/cpu_freebsd.go
@@ -28,7 +28,7 @@ func init() {
 	out, err := exec.Command("/usr/bin/getconf", "CLK_TCK").Output()
 	// ignore errors
 	if err == nil {
-		i, err := strconv.ParseFloat(string(out), 64)
+		i, err := strconv.ParseFloat(strings.TrimSpace(string(out)), 64)
 		if err == nil {
 			ClocksPerSec = float64(i)
 		}
diff --git a/cpu/cpu_linux.go b/cpu/cpu_linux.go
index 5499389..74054dd 100644
--- a/cpu/cpu_linux.go
+++ b/cpu/cpu_linux.go
@@ -17,7 +17,7 @@ func init() {
 	out, err := exec.Command("/usr/bin/getconf", "CLK_TCK").Output()
 	// ignore errors
 	if err == nil {
-		i, err := strconv.ParseFloat(string(out), 64)
+		i, err := strconv.ParseFloat(strings.TrimSpace(string(out)), 64)
 		if err == nil {
 			cpu_tick = float64(i)
 		}