1 files changed, 2 insertions, 2 deletions
diff --git a/BaseTools/Source/Python/Pkcs7Sign/Pkcs7Sign.py b/BaseTools/Source/Python/Pkcs7Sign/Pkcs7Sign.py
index 6412587e4b..ef79f80edd 100644
--- a/BaseTools/Source/Python/Pkcs7Sign/Pkcs7Sign.py
+++ b/BaseTools/Source/Python/Pkcs7Sign/Pkcs7Sign.py
@@ -203,7 +203,7 @@ if __name__ == '__main__':
     #
     # Sign the input file using the specified private key and capture signature from STDOUT
     #
-    Process = subprocess.Popen('%s smime -sign -binary -signer "%s" -outform DER -md sha256 -certfile "%s"' % (OpenSslCommand, args.SignerPrivateCertFileName, args.OtherPublicCertFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    Process = subprocess.Popen('%s smime -sign -binary -signer "%s" -outform DER -md sha256 -certfile "%s"' % (OpenSslCommand, args.SignerPrivateCertFileName, args.OtherPublicCertFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
     Signature = Process.communicate(input=FullInputFileBuffer)[0]
     if Process.returncode <> 0:
       sys.exit(Process.returncode)
@@ -272,7 +272,7 @@ if __name__ == '__main__':
     #
     # Verify signature
     #
-    Process = subprocess.Popen('%s smime -verify -inform DER -content %s -CAfile %s' % (OpenSslCommand, args.OutputFileName, args.TrustedPublicCertFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    Process = subprocess.Popen('%s smime -verify -inform DER -content %s -CAfile %s' % (OpenSslCommand, args.OutputFileName, args.TrustedPublicCertFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
     Process.communicate(input=args.SignatureBuffer)[0]
     if Process.returncode <> 0:
       print 'ERROR: Verification failed'