diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
index 91a28b228..88b7cc6de 100644
--- a/src/http/v2/ngx_http_v2.c
+++ b/src/http/v2/ngx_http_v2.c
@@ -3258,8 +3258,7 @@ ngx_http_v2_validate_header(ngx_http_request_t *r, ngx_http_v2_header_t *header)
             || (ch >= 'A' && ch <= 'Z'))
         {
             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
-                          "client sent invalid header name: \"%V\"",
-                          &header->name);
+                          "client sent invalid header name");
 
             return NGX_ERROR;
         }
@@ -3273,8 +3272,7 @@ ngx_http_v2_validate_header(ngx_http_request_t *r, ngx_http_v2_header_t *header)
         if (ch == '\0' || ch == LF || ch == CR) {
             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
                           "client sent header \"%V\" with "
-                          "invalid value: \"%V\"",
-                          &header->name, &header->value);
+                          "invalid value", &header->name);
 
             return NGX_ERROR;
         }
diff --git a/src/http/v3/ngx_http_v3_request.c b/src/http/v3/ngx_http_v3_request.c
index e41ad50a8..5fa6f0442 100644
--- a/src/http/v3/ngx_http_v3_request.c
+++ b/src/http/v3/ngx_http_v3_request.c
@@ -719,7 +719,7 @@ ngx_http_v3_validate_header(ngx_http_request_t *r, ngx_str_t *name,
             || (ch >= 'A' && ch <= 'Z'))
         {
             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
-                          "client sent invalid header name: \"%V\"", name);
+                          "client sent invalid header name");
 
             return NGX_ERROR;
         }
@@ -733,7 +733,7 @@ ngx_http_v3_validate_header(ngx_http_request_t *r, ngx_str_t *name,
         if (ch == '\0' || ch == LF || ch == CR) {
             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
                           "client sent header \"%V\" with "
-                          "invalid value: \"%V\"", name, value);
+                          "invalid value", name);
 
             return NGX_ERROR;
         }