diff --git a/export/index.template.html b/export/index.template.html
index feea8dd..0180a09 100644
--- a/export/index.template.html
+++ b/export/index.template.html
@@ -336,6 +336,9 @@ <h2>Message log</h2>
           "preprod": "04f3422b8afbe425d6ece77b8d2469954715a2ff273ab7ac89f1ed70e0a9325eaa1698b4351fd1b23734e65c0b6a86b62dd49d70b37c94606aac402cbd84353212"
         }
         const TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY = TURNKEY_SIGNERS_ENCLAVES["${TURNKEY_SIGNER_ENVIRONMENT}"];
+        if (TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY === undefined) {
+          throw new Error("Configuration error: TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY is undefined")
+        }
 
         // todo(olivia): throw error if enclave quorum public is null once server changes are deployed
         if (enclaveQuorumPublic) {
diff --git a/import/index.template.html b/import/index.template.html
index 9372f7e..5d5f5c7 100644
--- a/import/index.template.html
+++ b/import/index.template.html
@@ -293,6 +293,9 @@
           "preprod": "04f3422b8afbe425d6ece77b8d2469954715a2ff273ab7ac89f1ed70e0a9325eaa1698b4351fd1b23734e65c0b6a86b62dd49d70b37c94606aac402cbd84353212"
         }
         const TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY = TURNKEY_SIGNERS_ENCLAVES["${TURNKEY_SIGNER_ENVIRONMENT}"];
+        if (TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY === undefined) {
+          throw new Error("Configuration error: TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY is undefined")
+        }
 
         // todo(olivia): throw error if enclave quorum public is null once server changes are deployed
         if (enclaveQuorumPublic) {
diff --git a/import/standalone.template.html b/import/standalone.template.html
index 89a9769..203ef76 100644
--- a/import/standalone.template.html
+++ b/import/standalone.template.html
@@ -345,6 +345,9 @@ <h2>Message log</h2>
           "preprod": "04f3422b8afbe425d6ece77b8d2469954715a2ff273ab7ac89f1ed70e0a9325eaa1698b4351fd1b23734e65c0b6a86b62dd49d70b37c94606aac402cbd84353212"
         }
         const TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY = TURNKEY_SIGNERS_ENCLAVES["${TURNKEY_SIGNER_ENVIRONMENT}"];
+        if (TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY === undefined) {
+          throw new Error("Configuration error: TURNKEY_SIGNER_ENCLAVE_QUORUM_PUBLIC_KEY is undefined")
+        }
 
         // todo(olivia): throw error if enclave quorum public is null once server changes are deployed
         if (enclaveQuorumPublic) {