diff --git a/ethcore/res/ethereum/foundation.json b/ethcore/res/ethereum/foundation.json
index 3eadfe410..7f9f68824 100644
--- a/ethcore/res/ethereum/foundation.json
+++ b/ethcore/res/ethereum/foundation.json
@@ -164,11 +164,13 @@
 		"eip145Transition": "0x6f1580",
 		"eip1014Transition": "0x6f1580",
 		"eip1052Transition": "0x6f1580",
-		"eip1283Transition": "0x8a61c8",
+		"eip1283Transition": "0x0",
+		"eip1283DisableTransition": "0x0",
+		"eip1283ReenableTransition": "0x8a61c8",
+		"eip1344Transition": "0x8a61c8",
 		"eip1706Transition": "0x8a61c8",
 		"eip1884Transition": "0x8a61c8",
-		"eip2028Transition": "0x8a61c8",
-		"eip1344Transition": "0x8a61c8"
+		"eip2028Transition": "0x8a61c8"
 	},
 	"genesis": {
 		"seal": {
diff --git a/scripts/gitlab/validate-chainspecs.sh b/scripts/gitlab/validate-chainspecs.sh
index 210d86e52..fd0f73926 100755
--- a/scripts/gitlab/validate-chainspecs.sh
+++ b/scripts/gitlab/validate-chainspecs.sh
@@ -15,6 +15,15 @@ done
 for spec in ethcore/res/ethereum/*.json; do
     if ! ./target/release/chainspec "$spec"; then ERR=1; fi
 done
+
+echo "________Mainnet contains Istanbul EIPs________"
+for eip in $(grep --only-matching "eip.*Transition" ethcore/res/ethereum/istanbul_test.json); do
+    if ! grep -q $eip ethcore/res/ethereum/foundation.json; then
+        echo "ERROR: $eip is missing in the foundation json spec"
+        ERR=1
+    fi
+done
+
 #show sccache statistics
 sccache --show-stats
 exit $ERR