diff --git a/src/feed_store.rs b/src/feed_store.rs
index 7b75e51..8b9cba3 100644
--- a/src/feed_store.rs
+++ b/src/feed_store.rs
@@ -13,7 +13,7 @@ use url::Url;
 #[derive(Deserialize, Serialize, Default)]
 pub struct FetchData {
     pub etag: String,
-    pub date: String,
+    pub last_modified: String,
 }
 
 pub struct FeedStore {
@@ -81,7 +81,7 @@ impl FeedStore {
         let headers = response.headers();
         let fetchdata = FetchData {
             etag: hv(headers, "etag"),
-            date: hv(headers, "date"),
+            last_modified: hv(headers, "last_modified"),
         };
 
         let body = response
diff --git a/src/fetcher.rs b/src/fetcher.rs
index 13c326f..bb98269 100644
--- a/src/fetcher.rs
+++ b/src/fetcher.rs
@@ -40,8 +40,8 @@ impl Fetcher {
         if !fetchdata.etag.is_empty() {
             builder = builder.header("If-None-Match", fetchdata.etag);
         }
-        if !fetchdata.date.is_empty() {
-            builder = builder.header("If-Modified-Since", fetchdata.date);
+        if !fetchdata.last_modified.is_empty() {
+            builder = builder.header("If-Modified-Since", fetchdata.last_modified);
         }
 
         let start_instant = Instant::now();