diff --git a/dockerfile b/dockerfile
index eacaea1..2470399 100644
--- a/dockerfile
+++ b/dockerfile
@@ -2,7 +2,7 @@ FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
 WORKDIR /app
 
 # Copy csproj and restore as distinct layers
-COPY *.csproj ./
+COPY **/*.csproj ./
 RUN dotnet restore
 
 # Copy everything else and build