diff --git a/src/cmd/fetch.zig b/src/cmd/fetch.zig
index 6713694525fe1437106ab58e56bb5d0acdcf6118..f3b646d64b56a9a11096284e4e0dd292d09dc191 100644
--- a/src/cmd/fetch.zig
+++ b/src/cmd/fetch.zig
@@ -407,7 +407,7 @@ fn print_pkg_data_to(w: std.fs.File.Writer, notdone: *std.ArrayList(zigmod.Modul
 /// returns if all of the zig modules in needles are in haystack
 fn contains_all(needles: []zigmod.Module, haystack: []const zigmod.Module) bool {
     for (needles) |item| {
-        if (item.main.len > 0 and !u.list_contains_gen(zigmod.Module, haystack, item)) {
+        if (item.main.len > 0 and !extras.containsAggregate(zigmod.Module, haystack, item)) {
             return false;
         }
     }
diff --git a/src/cmd/generate.zig b/src/cmd/generate.zig
index 5dcf4363ff5d085d6810c6cac8225987853ab4da..0bf78bd08eab0d8659e887896603db47388673a5 100644
--- a/src/cmd/generate.zig
+++ b/src/cmd/generate.zig
@@ -1,5 +1,6 @@
 const std = @import("std");
 const string = []const u8;
+const extras = @import("extras");
 
 const zigmod = @import("../lib.zig");
 const u = @import("./../util/index.zig");
@@ -356,7 +357,7 @@ fn print_pkg_data_to(w: std.fs.File.Writer, alloc: std.mem.Allocator, cachepath:
 /// returns if all of the zig modules in needles are in haystack
 fn contains_all(needles: []zigmod.Module, haystack: []const zigmod.Module) bool {
     for (needles) |item| {
-        if (item.main.len > 0 and !u.list_contains_gen(zigmod.Module, haystack, item)) {
+        if (item.main.len > 0 and !extras.containsAggregate(zigmod.Module, haystack, item)) {
             return false;
         }
     }
diff --git a/src/common.zig b/src/common.zig
index e9d3009e4590a1f514efca17b47fc28957ebd675..808fa2e8b04cd68e5a8b806b72c9eefe9b03417e 100644
--- a/src/common.zig
+++ b/src/common.zig
@@ -90,7 +90,7 @@ pub fn collect_deps(cachepath: string, mdir: std.fs.Dir, dtype: zigmod.Dep.Type,
 }
 
 pub fn collect_pkgs(mod: zigmod.Module, list: *std.ArrayList(zigmod.Module)) anyerror!void {
-    if (u.list_contains_gen(zigmod.Module, list.items, mod)) {
+    if (extras.containsAggregate(zigmod.Module, list.items, mod)) {
         return;
     }
     try list.append(mod);
diff --git a/src/util/funcs.zig b/src/util/funcs.zig
index d4227029e6b591d57e1113fa93cc122610447d3e..d5833b2a1c6e8fd8b5ec69d41d593a952c1f5753 100644
--- a/src/util/funcs.zig
+++ b/src/util/funcs.zig
@@ -46,15 +46,6 @@ pub fn split(alloc: std.mem.Allocator, in: string, delim: string) ![]string {
     return list.toOwnedSlice();
 }
 
-pub fn list_contains_gen(comptime T: type, haystack: []const T, needle: T) bool {
-    for (haystack) |item| {
-        if (item.eql(needle)) {
-            return true;
-        }
-    }
-    return false;
-}
-
 pub fn file_list(alloc: std.mem.Allocator, dpath: string) ![]const string {
     var dir = try std.fs.cwd().openIterableDir(dpath, .{});
     defer dir.close();