diff --git a/src/cmd/cos_gpu_installer/internal/commands/install.go b/src/cmd/cos_gpu_installer/internal/commands/install.go
index e85ea7f..c8263d1 100644
--- a/src/cmd/cos_gpu_installer/internal/commands/install.go
+++ b/src/cmd/cos_gpu_installer/internal/commands/install.go
@@ -265,7 +265,7 @@
 	log.V(2).Info("Did not find cached version, installing the drivers...")
 
 	// install OSS kernel modules (if available) if device supports
-	if gpuType.OpenSupported() {
+	if !c.unsignedDriver && gpuType.OpenSupported() {
 		c.kernelOpen = gpuType.OpenSupported()
 	}