diff --git a/src/cmd/aq.zig b/src/cmd/aq.zig
index 53f336e0d8bc85cf71415d92d64607b1f8595d91..e40935277ee1a8a2ce7a088e5cd4c8a4f8a31aeb 100644
--- a/src/cmd/aq.zig
+++ b/src/cmd/aq.zig
@@ -40,7 +40,7 @@ pub fn execute(args: [][]u8) !void {
             return;
         }
     }
-    std.debug.panic("error: unknown command \"{s}\" for \"zigmod aq\"", .{args[0]});
+    u.assert(false, "unknown command \"{s}\" for \"zigmod aq\"", .{args[0]});
 }
 
 pub fn server_fetch(url: []const u8) !json.Value {
diff --git a/src/cmd/zpm.zig b/src/cmd/zpm.zig
index 24bf376e9372c236b356b8a229e23b305cd0a478..95c66cdac5996bdf181cd77feaded833950d826e 100644
--- a/src/cmd/zpm.zig
+++ b/src/cmd/zpm.zig
@@ -36,7 +36,7 @@ pub fn execute(args: [][]u8) !void {
             return;
         }
     }
-    std.debug.panic("error: unknown command \"{s}\" for \"zigmod zpm\"", .{args[0]});
+    u.assert(false, "unknown command \"{s}\" for \"zigmod zpm\"", .{args[0]});
 }
 
 pub fn server_fetch(url: []const u8) !json.Value {