diff --git a/sysinfo/sysinfo_linux.go b/sysinfo/sysinfo_linux.go
index 41fb0d2..8ba3ce4 100644
--- a/sysinfo/sysinfo_linux.go
+++ b/sysinfo/sysinfo_linux.go
@@ -75,7 +75,7 @@ func checkCgroupMem(cgMounts map[string]string, quiet bool) cgroupMemInfo {
 	mountPoint, ok := cgMounts["memory"]
 	if !ok {
 		if !quiet {
-			logrus.Warnf("Your kernel does not support cgroup memory limit")
+			logrus.Warn("Your kernel does not support cgroup memory limit")
 		}
 		return cgroupMemInfo{}
 	}
@@ -90,15 +90,15 @@ func checkCgroupMem(cgMounts map[string]string, quiet bool) cgroupMemInfo {
 	}
 	oomKillDisable := cgroupEnabled(mountPoint, "memory.oom_control")
 	if !quiet && !oomKillDisable {
-		logrus.Warnf("Your kernel does not support oom control.")
+		logrus.Warn("Your kernel does not support oom control.")
 	}
 	memorySwappiness := cgroupEnabled(mountPoint, "memory.swappiness")
 	if !quiet && !memorySwappiness {
-		logrus.Warnf("Your kernel does not support memory swappiness.")
+		logrus.Warn("Your kernel does not support memory swappiness.")
 	}
 	kernelMemory := cgroupEnabled(mountPoint, "memory.kmem.limit_in_bytes")
 	if !quiet && !kernelMemory {
-		logrus.Warnf("Your kernel does not support kernel memory limit.")
+		logrus.Warn("Your kernel does not support kernel memory limit.")
 	}
 
 	return cgroupMemInfo{
@@ -116,7 +116,7 @@ func checkCgroupCPU(cgMounts map[string]string, quiet bool) cgroupCPUInfo {
 	mountPoint, ok := cgMounts["cpu"]
 	if !ok {
 		if !quiet {
-			logrus.Warnf("Unable to find cpu cgroup in mounts")
+			logrus.Warn("Unable to find cpu cgroup in mounts")
 		}
 		return cgroupCPUInfo{}
 	}
@@ -147,7 +147,7 @@ func checkCgroupBlkioInfo(cgMounts map[string]string, quiet bool) cgroupBlkioInf
 	mountPoint, ok := cgMounts["blkio"]
 	if !ok {
 		if !quiet {
-			logrus.Warnf("Unable to find blkio cgroup in mounts")
+			logrus.Warn("Unable to find blkio cgroup in mounts")
 		}
 		return cgroupBlkioInfo{}
 	}
@@ -195,7 +195,7 @@ func checkCgroupCpusetInfo(cgMounts map[string]string, quiet bool) cgroupCpusetI
 	mountPoint, ok := cgMounts["cpuset"]
 	if !ok {
 		if !quiet {
-			logrus.Warnf("Unable to find cpuset cgroup in mounts")
+			logrus.Warn("Unable to find cpuset cgroup in mounts")
 		}
 		return cgroupCpusetInfo{}
 	}