diff --git a/zathura/content-type.c b/zathura/content-type.c
index 8569502..fb6745d 100644
--- a/zathura/content-type.c
+++ b/zathura/content-type.c
@@ -213,19 +213,36 @@ guess_type_glib(const char* path)
   return NULL;
 }
 
+static int compare_content_types(const void* lhs, const void* rhs) {
+  return g_strcmp0(lhs, rhs);
+}
+
 char*
 zathura_content_type_guess(zathura_content_type_context_t* context,
-                           const char* path)
+                           const char* path,
+                           const girara_list_t* supported_content_types)
 {
   /* try libmagic first */
-  char* content_type = guess_type_magic(context, path);
+  char *content_type = guess_type_magic(context, path);
   if (content_type != NULL) {
-    return content_type;
+    if (supported_content_types == NULL ||
+        girara_list_find(supported_content_types, compare_content_types,
+                         content_type) != NULL) {
+      return content_type;
+    }
+    girara_debug("content type '%s' not supported, trying again", content_type);
+    g_free(content_type);
   }
   /* else fallback to g_content_type_guess method */
   content_type = guess_type_glib(path);
   if (content_type != NULL) {
-    return content_type;
+    if (supported_content_types == NULL ||
+        girara_list_find(supported_content_types, compare_content_types,
+                         content_type) != NULL) {
+      return content_type;
+    }
+    girara_debug("content type '%s' not supported, trying again", content_type);
+    g_free(content_type);
   }
   /* and if libmagic is not available, try file as last resort */
   return guess_type_file(path);
diff --git a/zathura/content-type.h b/zathura/content-type.h
index cf46d7b..47f0ad1 100644
--- a/zathura/content-type.h
+++ b/zathura/content-type.h
@@ -27,6 +27,7 @@ void zathura_content_type_free(zathura_content_type_context_t* context);
  * @return content type of path, needs to freeed with g_free.
  */
 char* zathura_content_type_guess(zathura_content_type_context_t* context,
-                                 const char* path);
+                                 const char* path,
+                                 const girara_list_t* supported_content_types);
 
 #endif
diff --git a/zathura/document.c b/zathura/document.c
index 08d9b97..1d7e30c 100644
--- a/zathura/document.c
+++ b/zathura/document.c
@@ -90,7 +90,7 @@ zathura_document_open(zathura_t* zathura, const char* path, const char* uri,
     goto error_free;
   }
 
-  content_type = zathura_content_type_guess(zathura->content_type_context, real_path);
+  content_type = zathura_content_type_guess(zathura->content_type_context, real_path, zathura_plugin_manager_get_content_types(zathura->plugins.manager));
   if (content_type == NULL) {
     girara_error("Could not determine file type.");
     check_set_error(error, ZATHURA_ERROR_UNKNOWN);
@@ -98,7 +98,6 @@ zathura_document_open(zathura_t* zathura, const char* path, const char* uri,
   }
 
   plugin = zathura_plugin_manager_get_plugin(zathura->plugins.manager, content_type);
-
   if (plugin == NULL) {
     girara_error("Unknown file type: '%s'", content_type);
     check_set_error(error, ZATHURA_ERROR_UNKNOWN);
diff --git a/zathura/utils.c b/zathura/utils.c
index b5d7363..4a66728 100644
--- a/zathura/utils.c
+++ b/zathura/utils.c
@@ -52,7 +52,7 @@ file_valid_extension(zathura_t* zathura, const char* path)
     return false;
   }
 
-  char* content_type = zathura_content_type_guess(zathura->content_type_context, path);
+  char* content_type = zathura_content_type_guess(zathura->content_type_context, path, NULL);
   if (content_type == NULL) {
     return false;
   }