diff --git a/packages/server/src/client/internal/open-feature-client.ts b/packages/server/src/client/internal/open-feature-client.ts
index 6d2174df8..08a577845 100644
--- a/packages/server/src/client/internal/open-feature-client.ts
+++ b/packages/server/src/client/internal/open-feature-client.ts
@@ -298,7 +298,7 @@ export class OpenFeatureClient implements Client {
       };
 
       if (resolutionDetails.errorCode) {
-        const err = instantiateErrorByErrorCode(resolutionDetails.errorCode);
+        const err = instantiateErrorByErrorCode(resolutionDetails.errorCode, resolutionDetails.errorMessage);
         await this.errorHooks(allHooksReversed, hookContext, err, options);
         evaluationDetails = this.getErrorEvaluationDetails(flagKey, defaultValue, err, resolutionDetails.flagMetadata);
       } else {
diff --git a/packages/web/src/client/internal/open-feature-client.ts b/packages/web/src/client/internal/open-feature-client.ts
index d46b82a1b..0e0379f8e 100644
--- a/packages/web/src/client/internal/open-feature-client.ts
+++ b/packages/web/src/client/internal/open-feature-client.ts
@@ -253,7 +253,7 @@ export class OpenFeatureClient implements Client {
       };
 
       if (resolutionDetails.errorCode) {
-        const err = instantiateErrorByErrorCode(resolutionDetails.errorCode);
+        const err = instantiateErrorByErrorCode(resolutionDetails.errorCode, resolutionDetails.errorMessage);
         this.errorHooks(allHooksReversed, hookContext, err, options);
         evaluationDetails = this.getErrorEvaluationDetails(flagKey, defaultValue, err, resolutionDetails.flagMetadata);
       } else {