diff --git a/chains/v22/android/chains.json b/chains/v22/android/chains.json
index 7bed474..dcf49bd 100644
--- a/chains/v22/android/chains.json
+++ b/chains/v22/android/chains.json
@@ -57,6 +57,10 @@
       "themeColor": "#009639",
       "defaultBlockTimeMillis": 6000,
       "feeViaRuntimeCall": true
+    },
+    "types": {
+      "url": "https://raw.githubusercontent.com/nickmura/pezkuwi-wallet-utils/main/types/pezkuwi.json",
+      "overridesCommon": true
     }
   },
   {
@@ -91,6 +95,10 @@
     "additional": {
       "themeColor": "#009639",
       "feeViaRuntimeCall": true
+    },
+    "types": {
+      "url": "https://raw.githubusercontent.com/nickmura/pezkuwi-wallet-utils/main/types/pezkuwi.json",
+      "overridesCommon": true
     }
   },
   {
@@ -171,6 +179,10 @@
       "themeColor": "#009639",
       "defaultBlockTimeMillis": 6000,
       "feeViaRuntimeCall": true
+    },
+    "types": {
+      "url": "https://raw.githubusercontent.com/nickmura/pezkuwi-wallet-utils/main/types/pezkuwi.json",
+      "overridesCommon": true
     }
   },
   {
@@ -219,6 +231,10 @@
       "themeColor": "#009639",
       "defaultBlockTimeMillis": 6000,
       "feeViaRuntimeCall": true
+    },
+    "types": {
+      "url": "https://raw.githubusercontent.com/nickmura/pezkuwi-wallet-utils/main/types/pezkuwi.json",
+      "overridesCommon": true
     }
   },
   {
diff --git a/types/pezkuwi.json b/types/pezkuwi.json
new file mode 100644
index 0000000..7e71938
--- /dev/null
+++ b/types/pezkuwi.json
@@ -0,0 +1,12 @@
+{
+  "types": {
+    "ExtrinsicSignature": "MultiSignature",
+    "Address": "pezsp_runtime::multiaddress::MultiAddress",
+    "LookupSource": "pezsp_runtime::multiaddress::MultiAddress"
+  },
+  "typesAlias": {
+    "pezsp_runtime::multiaddress::MultiAddress": "MultiAddress",
+    "pezsp_runtime::MultiSignature": "MultiSignature",
+    "pezsp_runtime.generic.era.Era": "Era"
+  }
+}