diff --git a/collector/loadavg_solaris.go b/collector/loadavg_solaris.go
index f9192aa0..bf428d8a 100644
--- a/collector/loadavg_solaris.go
+++ b/collector/loadavg_solaris.go
@@ -32,8 +32,8 @@ import "C"
 func getLoad() ([]float64, error) {
 	var loadavg [3]C.double
 	samples := C.getloadavg(&loadavg[0], 3)
-	if samples > 0 {
-		return []float64{float64(loadavg[0]), float64(loadavg[1]), float64(loadavg[2])}, nil
+	if samples != 3 {
+		return nil, errors.New("failed to get load average")
 	}
-	return nil, errors.New("failed to get load average")
+	return []float64{float64(loadavg[0]), float64(loadavg[1]), float64(loadavg[2])}, nil
 }
diff --git a/collector/loadavg_unix.go b/collector/loadavg_unix.go
index df6d652e..4d658852 100644
--- a/collector/loadavg_unix.go
+++ b/collector/loadavg_unix.go
@@ -26,8 +26,8 @@ import "C"
 func getLoad() ([]float64, error) {
 	var loadavg [3]C.double
 	samples := C.getloadavg(&loadavg[0], 3)
-	if samples > 0 {
-		return []float64{float64(loadavg[0]), float64(loadavg[1]), float64(loadavg[2])}, nil
+	if samples != 3 {
+		return nil, errors.New("failed to get load average")
 	}
-	return nil, errors.New("failed to get load average")
+	return []float64{float64(loadavg[0]), float64(loadavg[1]), float64(loadavg[2])}, nil
 }