diff --git a/src/main/keystore/generate_self_signed_cert.sh b/src/main/keystore/generate_self_signed_cert.sh
index e67b76150..01f0f9dc2 100755
--- a/src/main/keystore/generate_self_signed_cert.sh
+++ b/src/main/keystore/generate_self_signed_cert.sh
@@ -8,28 +8,28 @@ trap 'rm -rf $tmpDir' EXIT
 
 cat > "$tmpDir/req.cnf" <<EOF
 [ req ]
-default_bits				= 2048
-prompt						= no
-distinguished_name			= req_distinguished_name
-x509_extensions				= req_ext
+default_bits            = 2048
+prompt                  = no
+distinguished_name      = req_distinguished_name
+x509_extensions         = req_ext
 
 [ req_distinguished_name ]
-countryName					= US
-stateOrProvinceName 		= NY
-localityName				= New York
-organizationName			= Jenkins
-organizationalUnitName		= Test
-commonName					= Self-Signed CA
-emailAddress				= noreply@jenkins.io
+countryName             = US
+stateOrProvinceName     = NY
+localityName            = New York
+organizationName        = Jenkins
+organizationalUnitName  = Test
+commonName              = Self-Signed CA
+emailAddress            = noreply@jenkins.io
 
 [ req_ext ]
-keyUsage						= digitalSignature
-basicConstraints				= CA:false
-subjectAltName					= @alternate_names
-subjectKeyIdentifier			= hash
+keyUsage                = digitalSignature
+basicConstraints        = CA:false
+subjectAltName          = @alternate_names
+subjectKeyIdentifier    = hash
 
 [ alternate_names ]
-DNS.1							= localhost
+DNS.1                   = localhost
 EOF
 
 mkdir -p "$tmpDir/output"