diff --git a/docs/guides/06-errors.md b/docs/guides/06-errors.md
index 50c4660fb..465bb88e4 100644
--- a/docs/guides/06-errors.md
+++ b/docs/guides/06-errors.md
@@ -194,7 +194,7 @@ curl http://localhost:4010/todos -H "accept: application/json"`
 
 **Returned Status Code: `500`**
 
-**Explanation:** This error occurs when you're run Prism with the `--errors` flag and the request or the response has at least one violation marked as an error.
+**Explanation:** This error occurs when you've run Prism with the `--errors` flag and the request or the response has at least one violation marked as an error.
 
 **Message #2: response.body Request body must match exactly one schema in oneOf**
 
diff --git a/packages/http-server/src/server.ts b/packages/http-server/src/server.ts
index 9aeda423e..e7ee8c91d 100644
--- a/packages/http-server/src/server.ts
+++ b/packages/http-server/src/server.ts
@@ -121,22 +121,12 @@ export const createServer = (operations: IHttpOperation[], opts: IPrismHttpServe
 
         if (inputOutputValidationErrors.length > 0) {
           addViolationHeader(reply, inputOutputValidationErrors);
-
-          const errorViolations = outputValidationErrors.filter(
-            v => v.severity === DiagnosticSeverity[DiagnosticSeverity.Error]
-          );
-
-          if (opts.config.errors && errorViolations.length > 0) {
-            return IOE.left(
-              ProblemJsonError.fromTemplate(
-                VIOLATIONS,
-                'Your request/response is not valid and the --errors flag is set, so Prism is generating this error for you.',
-                { validation: errorViolations }
-              )
-            );
-          }
         }
 
+        const errorViolations = outputValidationErrors.filter(
+          v => v.severity === DiagnosticSeverity[DiagnosticSeverity.Error]
+        );
+
         inputOutputValidationErrors.forEach(validation => {
           const message = `Violation: ${validation.location.join('.') || ''} ${validation.message}`;
           if (validation.severity === DiagnosticSeverity[DiagnosticSeverity.Error]) {
@@ -148,6 +138,16 @@ export const createServer = (operations: IHttpOperation[], opts: IPrismHttpServe
           }
         });
 
+        if (opts.config.errors && errorViolations.length > 0) {
+          return IOE.left(
+            ProblemJsonError.fromTemplate(
+              VIOLATIONS,
+              'Your request/response is not valid and the --errors flag is set, so Prism is generating this error for you.',
+              { validation: errorViolations }
+            )
+          );
+        }
+
         return IOE.fromEither(
           E.tryCatch(() => {
             if (output.headers) Object.entries(output.headers).forEach(([name, value]) => reply.setHeader(name, value));