diff --git a/pkg/compose/build.go b/pkg/compose/build.go
index cf2f8a363..406bb6d9c 100644
--- a/pkg/compose/build.go
+++ b/pkg/compose/build.go
@@ -354,6 +354,7 @@ func resolveAndMergeBuildArgs(
 	// so they're handled last
 	for k, v := range storeutil.GetProxyConfig(dockerCli) {
 		if _, ok := result[k]; !ok {
+			v := v
 			result[k] = &v
 		}
 	}