diff --git a/Cargo.lock b/Cargo.lock
index bc5d0dff866ea..70ea1063fb65f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3670,6 +3670,7 @@ dependencies = [
  "sc-transaction-graph",
  "sc-transaction-pool",
  "serde",
+ "serde_json",
  "sp-api",
  "sp-block-builder",
  "sp-blockchain",
diff --git a/node/parachain/Cargo.toml b/node/parachain/Cargo.toml
index 40e7fe7022363..5b71afcf568bb 100644
--- a/node/parachain/Cargo.toml
+++ b/node/parachain/Cargo.toml
@@ -23,6 +23,7 @@ codec = { package = 'parity-scale-codec', version = '1.0.0' }
 structopt = "0.3.3"
 ansi_term = "0.12.1"
 serde = { version = "1.0.101", features = ["derive"] }
+serde_json = "1.0"
 jsonrpc-core = "14.0.3"
 jsonrpc-pubsub = "14.0.3"
 
diff --git a/node/parachain/src/chain_spec.rs b/node/parachain/src/chain_spec.rs
index 62fdfb4a70fe6..7272766c1bdad 100644
--- a/node/parachain/src/chain_spec.rs
+++ b/node/parachain/src/chain_spec.rs
@@ -93,7 +93,12 @@ pub fn get_chain_spec(id: ParaId) -> Result<ChainSpec, String> {
 		vec![],
 		None,
 		None,
-		None,
+		Some(
+			serde_json::from_str(
+				"{\"tokenDecimals\": 18}"
+			)
+			.expect("Provided valid json map")
+		),
 		Extensions {
 			relay_chain: "local_testnet".into(),
 			para_id: id.into(),
@@ -118,7 +123,12 @@ pub fn staging_test_net(id: ParaId) -> Result<ChainSpec, String> {
 		Vec::new(),
 		None,
 		None,
-		None,
+		Some(
+			serde_json::from_str(
+				"{\"tokenDecimals\": 18}"
+			)
+			.expect("Provided valid json map")
+		),
 		Extensions {
 			relay_chain: "rococo_local_testnet".into(),
 			para_id: id.into(),
diff --git a/node/standalone/Cargo.lock b/node/standalone/Cargo.lock
index ef44837dd720b..d0eaef43b1deb 100644
--- a/node/standalone/Cargo.lock
+++ b/node/standalone/Cargo.lock
@@ -3492,6 +3492,7 @@ dependencies = [
  "sc-service",
  "sc-transaction-graph",
  "sc-transaction-pool",
+ "serde_json",
  "sp-api",
  "sp-block-builder",
  "sp-blockchain",
diff --git a/node/standalone/Cargo.toml b/node/standalone/Cargo.toml
index 959bf8b52a389..04b6ef3643298 100644
--- a/node/standalone/Cargo.toml
+++ b/node/standalone/Cargo.toml
@@ -26,6 +26,7 @@ log = "0.4.8"
 structopt = "0.3.8"
 jsonrpc-core = "14.0.3"
 jsonrpc-pubsub = "14.0.3"
+serde_json = "1.0"
 
 sp-api = { git = "https://github.com/paritytech/substrate.git", branch = "rococo-branch" }
 sp-blockchain = { git = "https://github.com/paritytech/substrate.git", branch = "rococo-branch" }
diff --git a/node/standalone/src/chain_spec.rs b/node/standalone/src/chain_spec.rs
index 88c31c04f4868..2aa384e863de7 100644
--- a/node/standalone/src/chain_spec.rs
+++ b/node/standalone/src/chain_spec.rs
@@ -89,7 +89,12 @@ pub fn development_config() -> Result<ChainSpec, String> {
 		// Protocol ID
 		None,
 		// Properties
-		None,
+		Some(
+			serde_json::from_str(
+				"{\"tokenDecimals\": 18}"
+			)
+			.expect("Provided valid json map")
+		),
 		// Extensions
 		None,
 	))
@@ -137,7 +142,12 @@ pub fn local_testnet_config() -> Result<ChainSpec, String> {
 		// Protocol ID
 		None,
 		// Properties
-		None,
+		Some(
+			serde_json::from_str(
+				"{\"tokenDecimals\": 18}"
+			)
+			.expect("Provided valid json map")
+		),
 		// Extensions
 		None,
 	))
diff --git a/specs/moonbase-alphanet-dev-specs-template.json b/specs/moonbase-alphanet-dev-specs-template.json
index 0e448b844b7a7..961c5f0ab9fdc 100644
--- a/specs/moonbase-alphanet-dev-specs-template.json
+++ b/specs/moonbase-alphanet-dev-specs-template.json
@@ -5,7 +5,9 @@
   "bootNodes": [],
   "telemetryEndpoints": null,
   "protocolId": null,
-  "properties": null,
+  "properties": {
+    "tokenDecimals": 18
+  },
   "relay_chain": "local_testnet",
   "para_id": 1000,
   "consensusEngine": null,
diff --git a/specs/moonbase-alphanet-specs-template.json b/specs/moonbase-alphanet-specs-template.json
index 534901a4d6205..604ac4bdb0e31 100644
--- a/specs/moonbase-alphanet-specs-template.json
+++ b/specs/moonbase-alphanet-specs-template.json
@@ -5,7 +5,9 @@
   "bootNodes": [],
   "telemetryEndpoints": null,
   "protocolId": null,
-  "properties": null,
+  "properties": {
+    "tokenDecimals": 18
+  },
   "relay_chain": "local_testnet",
   "para_id": 1000,
   "consensusEngine": null,
diff --git a/specs/rococo-alphanet-specs-template.json b/specs/rococo-alphanet-specs-template.json
index 998e912d87e73..a46a69d706f5e 100755
--- a/specs/rococo-alphanet-specs-template.json
+++ b/specs/rococo-alphanet-specs-template.json
@@ -5,7 +5,9 @@
   "bootNodes": [],
   "telemetryEndpoints": null,
   "protocolId": "dot",
-  "properties": null,
+  "properties": {
+    "tokenDecimals": 18
+  },
   "consensusEngine": null,
   "genesis": {
     "runtime": {
diff --git a/tests/moonbeam-test-specs/simple-specs.json b/tests/moonbeam-test-specs/simple-specs.json
index 148710ecedbdb..c280cf1458047 100644
--- a/tests/moonbeam-test-specs/simple-specs.json
+++ b/tests/moonbeam-test-specs/simple-specs.json
@@ -5,7 +5,9 @@
   "bootNodes": [],
   "telemetryEndpoints": null,
   "protocolId": null,
-  "properties": null,
+  "properties": {
+    "tokenDecimals": 18
+  },
   "consensusEngine": null,
   "genesis": {
     "runtime": {
diff --git a/tests/moonbeam-test-specs/templates/simple-specs-template.json b/tests/moonbeam-test-specs/templates/simple-specs-template.json
index a7cdd37ec4694..45b331a07feab 100644
--- a/tests/moonbeam-test-specs/templates/simple-specs-template.json
+++ b/tests/moonbeam-test-specs/templates/simple-specs-template.json
@@ -5,7 +5,9 @@
   "bootNodes": [],
   "telemetryEndpoints": null,
   "protocolId": null,
-  "properties": null,
+  "properties": {
+    "tokenDecimals": 18
+  },
   "consensusEngine": null,
   "genesis": {
     "runtime": {