diff --git a/pkg/skaffold/sync/sync.go b/pkg/skaffold/sync/sync.go
index f04d377ad88..b284f9c8400 100644
--- a/pkg/skaffold/sync/sync.go
+++ b/pkg/skaffold/sync/sync.go
@@ -161,6 +161,9 @@ func syncMapForArtifact(a *latest.Artifact, insecureRegistries map[string]bool)
 	case a.DockerArtifact != nil:
 		return docker.SyncMap(a.Workspace, a.DockerArtifact.DockerfilePath, a.DockerArtifact.BuildArgs, insecureRegistries)
 
+	case a.CustomArtifact != nil && a.CustomArtifact.Dependencies != nil && a.CustomArtifact.Dependencies.Dockerfile != nil:
+		return docker.SyncMap(a.Workspace, a.CustomArtifact.Dependencies.Dockerfile.Path, a.CustomArtifact.Dependencies.Dockerfile.BuildArgs, insecureRegistries)
+
 	case a.KanikoArtifact != nil:
 		return docker.SyncMap(a.Workspace, a.KanikoArtifact.DockerfilePath, a.KanikoArtifact.BuildArgs, insecureRegistries)
 
diff --git a/pkg/skaffold/sync/sync_test.go b/pkg/skaffold/sync/sync_test.go
index d247b5e5c98..a31cb238464 100644
--- a/pkg/skaffold/sync/sync_test.go
+++ b/pkg/skaffold/sync/sync_test.go
@@ -930,6 +930,30 @@ func TestSyncMap(t *testing.T) {
 			},
 			expectedMap: map[string][]string{"main.go": {"/app/main.go"}},
 		},
+		{
+			description: "custom - supported",
+			artifactType: latest.ArtifactType{
+				CustomArtifact: &latest.CustomArtifact{
+					Dependencies: &latest.CustomDependencies{
+						Dockerfile: &latest.DockerfileDependency{
+							Path: "Dockerfile",
+						},
+					},
+				},
+			},
+			files: map[string]string{
+				"Dockerfile": "FROM alpine\nCOPY *.go /app/",
+				"main.go":    "",
+			},
+			expectedMap: map[string][]string{"main.go": {"/app/main.go"}},
+		},
+		{
+			description: "custom, no dockerfile - not supported",
+			artifactType: latest.ArtifactType{
+				CustomArtifact: &latest.CustomArtifact{},
+			},
+			shouldErr: true,
+		},
 		{
 			description:  "not supported",
 			artifactType: latest.ArtifactType{},