diff --git a/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template b/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
index 4125d712acb..53c5adae0d1 100644
--- a/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
+++ b/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
@@ -25,8 +25,13 @@
   cp -r /var/local/jenkins/service_account $HOME || true
 
   cd /var/local/git/grpc-dotnet
+  
+  # If needed, update dotnet SDK and put it on path
   ./build/get-dotnet.sh
-  export PATH="$HOME/.dotnet/:$PATH"
+  if [ -f $HOME/.dotnet/dotnet ]
+  then
+    ln -s $HOME/.dotnet/dotnet /usr/local/bin/dotnet
+  fi
   
   ./build/get-grpc.sh
 
diff --git a/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
index 444aec169a1..ce21e0f335d 100644
--- a/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
@@ -23,8 +23,13 @@ git clone /var/local/jenkins/grpc-dotnet /var/local/git/grpc-dotnet
 cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc-dotnet
+
+# If needed, update dotnet SDK and put it on path
 ./build/get-dotnet.sh
-export PATH="$HOME/.dotnet/:$PATH"
+if [ -f $HOME/.dotnet/dotnet ]
+then
+  ln -s $HOME/.dotnet/dotnet /usr/local/bin/dotnet
+fi
 
 ./build/get-grpc.sh