diff --git a/alphainnotec/meta.json b/alphainnotec/meta.json
index 09832c9..b2b859b 100644
--- a/alphainnotec/meta.json
+++ b/alphainnotec/meta.json
@@ -5,7 +5,8 @@
     "stability": "community",
     "offline": true,
     "technologies": [
-        "network"
+        "network",
+        "modbus"
     ],
     "categories": [
         "heating"
diff --git a/drexelundweiss/meta.json b/drexelundweiss/meta.json
index 994ede4..7159a76 100644
--- a/drexelundweiss/meta.json
+++ b/drexelundweiss/meta.json
@@ -5,7 +5,8 @@
     "stability": "community",
     "offline": true,
     "technologies": [
-        "network"
+        "network",
+        "modbus"
     ],
     "categories": [
         "heating"
diff --git a/modbuscommander/meta.json b/modbuscommander/meta.json
index 0f9aa45..4d12473 100644
--- a/modbuscommander/meta.json
+++ b/modbuscommander/meta.json
@@ -6,9 +6,10 @@
     "offline": true,
     "technologies": [
         "serial-port",
-        "network"
+        "network",
+        "modbus"
     ],
     "categories": [
-        "tool"
+        "diy"
     ]
 }
diff --git a/mypv/meta.json b/mypv/meta.json
index 43fa0ad..36c9b3f 100644
--- a/mypv/meta.json
+++ b/mypv/meta.json
@@ -5,7 +5,8 @@
     "stability": "community",
     "offline": true,
     "technologies": [
-        "network"
+        "network",
+        "modbus"
     ],
     "categories": [
         "heating"
diff --git a/sunspec/meta.json b/sunspec/meta.json
index 4440778..8d08966 100644
--- a/sunspec/meta.json
+++ b/sunspec/meta.json
@@ -5,7 +5,8 @@
     "stability": "consumer",
     "offline": true,
     "technologies": [
-	"network"
+	"network",
+        "modbus"
     ],
     "categories": [
         "energy"
diff --git a/unipi/meta.json b/unipi/meta.json
index 7b9b77a..dccb986 100644
--- a/unipi/meta.json
+++ b/unipi/meta.json
@@ -6,7 +6,8 @@
     "offline": true,
     "technologies": [
         "network",
-        "serial-port"
+        "serial-port",
+        "modbus"
     ],
     "categories": [
         "diy"
diff --git a/wallbe/meta.json b/wallbe/meta.json
index 652339a..71e160f 100644
--- a/wallbe/meta.json
+++ b/wallbe/meta.json
@@ -5,7 +5,8 @@
     "stability": "community",
     "offline": true,
     "technologies": [
-        "network"
+        "network",
+        "modbus"
     ],
     "categories": [
         "tool"
diff --git a/webasto/meta.json b/webasto/meta.json
index c226af8..92e1b48 100644
--- a/webasto/meta.json
+++ b/webasto/meta.json
@@ -5,9 +5,10 @@
     "stability": "consumer",
     "offline": true,
     "technologies": [
-        "network"
+        "network",
+        "modbus"
     ],
     "categories": [
-        "tool"
+        "energy"
     ]
 }