diff --git a/src/main/connector/hardware/MIB2Linux/MIB2Linux.yaml b/src/main/connector/hardware/MIB2Linux/MIB2Linux.yaml
index d6d042e..a2f0bb8 100644
--- a/src/main/connector/hardware/MIB2Linux/MIB2Linux.yaml
+++ b/src/main/connector/hardware/MIB2Linux/MIB2Linux.yaml
@@ -22,7 +22,7 @@ monitors:
             # PortID;Description;PortType;MacAddress;AdminStatus;
           - type: keepOnlyMatchingLines
             column: 2
-            regExp: \\(^eth[0-9]+$\\)\\|\\(^vmnic[0-9]+$\\)\\|\\(^em[0-9]+$\\)\\|\\(^[Pp][0-9]+[Pp][0-9]+$\\)\\|\\(^en[ospx]\\)
+            regExp: "\\(^eth[0-9]+$\\)\\|\\(^vmnic[0-9]+$\\)\\|\\(^em[0-9]+$\\)\\|\\(^[Pp][0-9]+[Pp][0-9]+$\\)\\|\\(^en[ospx]\\)"
       mapping:
         # InstanceTable = Source(1)
         # PortID;Description;PortType;MacAddress;AdminStatus;
diff --git a/src/main/connector/hardware/MIB2NT/MIB2NT.yaml b/src/main/connector/hardware/MIB2NT/MIB2NT.yaml
index f1a5ec0..f2e9634 100644
--- a/src/main/connector/hardware/MIB2NT/MIB2NT.yaml
+++ b/src/main/connector/hardware/MIB2NT/MIB2NT.yaml
@@ -28,7 +28,7 @@ monitors:
             # PortID;Description;PortType;MacAddress;AdminStatus;
           - type: excludeMatchingLines
             column: 2
-            regExp: \\(WAN\\)\\|\\(QoS\\)\\|\\([Ff]ilter\\)\\|\\([Ss]witch\\)\\|\\(57 41 4E 20\\)\\|\\(4D 69 63 72 6F 73 6F 66 74\\)
+            regExp: "\\(WAN\\)\\|\\(QoS\\)\\|\\([Ff]ilter\\)\\|\\([Ss]witch\\)\\|\\(57 41 4E 20\\)\\|\\(4D 69 63 72 6F 73 6F 66 74\\)"
             # Keep only network cards that have a description
             # PortID;Description;PortType;MacAddress;AdminStatus;
           - type: keepOnlyMatchingLines