diff --git a/plugins/libvirt/kvm_cpu b/plugins/libvirt/kvm_cpu
index 3f0faab7..9df0cf7f 100755
--- a/plugins/libvirt/kvm_cpu
+++ b/plugins/libvirt/kvm_cpu
@@ -80,7 +80,7 @@ def clean_vm_name(vm_name):
     parts = vm_name.split('\x00')
     if parts[0].endswith('kvm'):
         try:
-            return parts[parts.index('-name') + 1]
+            return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", parts[parts.index('-name') + 1])
         except ValueError:
             pass
     return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", vm_name)
diff --git a/plugins/libvirt/kvm_io b/plugins/libvirt/kvm_io
index 62bc6a10..09460035 100755
--- a/plugins/libvirt/kvm_io
+++ b/plugins/libvirt/kvm_io
@@ -79,7 +79,7 @@ def clean_vm_name(vm_name):
     parts = vm_name.split('\x00')
     if (parts[0].endswith('kvm')):
         try:
-            vm_name = parts[parts.index('-name') + 1]
+            vm_name = re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", parts[parts.index('-name') + 1])
         except ValueError:
             pass
     return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", vm_name)
diff --git a/plugins/libvirt/kvm_mem b/plugins/libvirt/kvm_mem
index 1d405fca..c6bfd97d 100755
--- a/plugins/libvirt/kvm_mem
+++ b/plugins/libvirt/kvm_mem
@@ -48,7 +48,7 @@ def clean_vm_name(vm_name):
     parts = vm_name.split('\x00')
     if (parts[0].endswith('kvm')):
         try:
-            return parts[parts.index('-name')+1]
+            return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", parts[parts.index('-name')+1])
         except ValueError:
             pass
     return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", vm_name)
diff --git a/plugins/libvirt/kvm_net b/plugins/libvirt/kvm_net
index 8e9c5205..04a6e1d0 100755
--- a/plugins/libvirt/kvm_net
+++ b/plugins/libvirt/kvm_net
@@ -103,7 +103,7 @@ def clean_vm_name(vm_name):
     parts = vm_name.split('\x00')
     if (parts[0].endswith('kvm')):
         try:
-            return parts[parts.index('-name')+1]
+            return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", parts[parts.index('-name')+1])
         except ValueError:
             pass
     return re.sub(r"(^[^A-Za-z_]|[^A-Za-z0-9_])", "_", vm_name)