diff --git a/plugins/inputs/passenger/passenger.go b/plugins/inputs/passenger/passenger.go
index 84e92cb1a9b73..f00bfc824de28 100644
--- a/plugins/inputs/passenger/passenger.go
+++ b/plugins/inputs/passenger/passenger.go
@@ -102,7 +102,7 @@ func (p *process) getUptime() int64 {
 				uptime += value * (24 * 60 * 60)
 			}
 		case strings.HasSuffix(v, "h"):
-			iValue := strings.TrimSuffix(v, "y")
+			iValue := strings.TrimSuffix(v, "h")
 			value, err := strconv.ParseInt(iValue, 10, 64)
 			if err == nil {
 				uptime += value * (60 * 60)
diff --git a/plugins/inputs/passenger/passenger_test.go b/plugins/inputs/passenger/passenger_test.go
index 6124a968e31eb..c54239d39ecfd 100644
--- a/plugins/inputs/passenger/passenger_test.go
+++ b/plugins/inputs/passenger/passenger_test.go
@@ -126,7 +126,7 @@ func TestPassengerGenerateMetric(t *testing.T) {
 		"spawn_start_time":      int64(1452746844946982),
 		"spawn_end_time":        int64(1452746845013365),
 		"last_used":             int64(1452747071764940),
-		"uptime":                int64(226), // in seconds of 3m 46s
+		"uptime":                int64(191026), // in seconds of 2d 5h 3m 46s
 		"cpu":                   int64(58),
 		"rss":                   int64(418548),
 		"pss":                   int64(319391),
@@ -219,7 +219,7 @@ var sampleStat = `
             <spawn_end_time>1452746845013365</spawn_end_time>
             <last_used>1452747071764940</last_used>
             <last_used_desc>0s ago</last_used_desc>
-            <uptime>3m 46s</uptime>
+            <uptime>2d 5h 3m 46s</uptime>
             <code_revision>899ac7f</code_revision>
             <life_status>ALIVE</life_status>
             <enabled>ENABLED</enabled>
@@ -263,7 +263,7 @@ var sampleStat = `
             <spawn_end_time>1452746845172460</spawn_end_time>
             <last_used>1452747071709179</last_used>
             <last_used_desc>0s ago</last_used_desc>
-            <uptime>3m 46s</uptime>
+            <uptime>2d 5h 3m 46s</uptime>
             <code_revision>899ac7f</code_revision>
             <life_status>ALIVE</life_status>
             <enabled>ENABLED</enabled>