diff --git a/services/core/java/com/android/server/pm/PackageManagerShellCommand.java b/services/core/java/com/android/server/pm/PackageManagerShellCommand.java
index bc94528c07f08..0dc4d131640cb 100644
--- a/services/core/java/com/android/server/pm/PackageManagerShellCommand.java
+++ b/services/core/java/com/android/server/pm/PackageManagerShellCommand.java
@@ -3172,7 +3172,7 @@ class PackageManagerShellCommand extends ShellCommand {
             metadata = (streamingVersion == 0) ? Metadata.forDataOnlyStreaming(fileId)
                     : Metadata.forStreaming(fileId);
             try {
-                if (V4Signature.readFrom(signature) == null) {
+                if ((signature.length > 0) && (V4Signature.readFrom(signature) == null)) {
                     getErrPrintWriter().println("V4 signature is invalid in: " + arg);
                     return 1;
                 }