diff --git a/layouts/_default/index.html b/layouts/_default/index.html
index 1a44b29..cb22592 100644
--- a/layouts/_default/index.html
+++ b/layouts/_default/index.html
@@ -38,9 +38,18 @@
           </span>
         {{ end }}
 
-        {{ if .Params.Cover }}
-          <img src="{{ .Params.Cover | absURL }}" class="post-cover" alt="{{ .Title | plainify | default " " }}" />
-        {{ end }}
+
+        {{- $cover := false -}}
+        {{- $autoCover := default $.Site.Params.autoCover false }}
+        {{- if $autoCover -}}
+          {{- $cover = .Resources.GetMatch "cover.*" -}}
+        {{- else if .Params.Cover -}}
+          {{- if .Resources.GetMatch .Params.Cover }}
+            {{ $cover = .Resources.GetMatch .Params.Cover }}
+          {{- end -}}
+        {{- end -}}
+        {{if $cover -}} <img src="{{ $cover.Permalink }}" class="post-cover" alt="{{ .Title | plainify | default " " }}" />{{- end }}
+      
 
         <div class="post-content">
           {{ if .Params.showFullContent }}
diff --git a/layouts/_default/list.html b/layouts/_default/list.html
index 2090966..5f97e3c 100644
--- a/layouts/_default/list.html
+++ b/layouts/_default/list.html
@@ -29,10 +29,18 @@
           </span>
         {{ end }}
 
-        {{ if .Params.Cover }}
-          <img src="{{ .Params.Cover | absURL }}" class="post-cover" alt="{{ .Title | plainify | default " " }}" />
-        {{ end }}
 
+        {{- $cover := false -}}
+        {{- $autoCover := default $.Site.Params.autoCover false }}
+        {{- if $autoCover -}}
+          {{- $cover = .Resources.GetMatch "cover.*" -}}
+        {{- else if .Params.Cover -}}
+          {{- if .Resources.GetMatch .Params.Cover }}
+            {{ $cover = .Resources.GetMatch .Params.Cover }}
+          {{- end -}}
+        {{- end -}}
+        {{if $cover -}} <img src="{{ $cover.Permalink }}" class="post-cover" alt="{{ .Title | plainify | default " " }}" />{{- end }}
+      
         <div class="post-content">
           {{ if .Params.showFullContent }}
           {{ .Content | markdownify }}
diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index ad05488..1b46c1e 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -21,9 +21,16 @@
   </span>
   {{ end }}
 
-  {{ if .Params.Cover }}
-    <img src="{{ .Params.Cover | absURL }}" class="post-cover" alt="{{ .Title | plainify | default " " }}" />
-  {{ end }}
+  {{- $cover := false -}}
+  {{- $autoCover := default $.Site.Params.autoCover false }}
+  {{- if $autoCover -}}
+    {{- $cover = .Resources.GetMatch "cover.*" -}}
+  {{- else if .Params.Cover -}}
+    {{- if .Resources.GetMatch .Params.Cover }}
+      {{ $cover = .Resources.GetMatch .Params.Cover }}
+    {{- end -}}
+  {{- end -}}
+  {{if $cover -}} <img src="{{ $cover.Permalink }}" class="post-cover" alt="{{ .Title | plainify | default " " }}" />{{- end }}
 
   {{ if .Params.Toc }}
     <div class="table-of-contents">