makefile's @echo -e option not recognized about jsencrypt HOT 5 CLOSED

index 4b409f1..f4436ac 100644
--- a/makefile
+++ b/makefile
@@ -33,7 +33,7 @@ js: ${files}
        @echo "var JSEncryptExports = {};" > bin/jsencrypt.js
        @echo "(function(exports) {" >> bin/jsencrypt.js
        @cat $^ >> bin/jsencrypt.js
-       @echo -e "\nexports.JSEncrypt = JSEncrypt;" >> bin/jsencrypt.js
+       @echo "exports.JSEncrypt = JSEncrypt;" >> bin/jsencrypt.js
        @echo "})(JSEncryptExports);" >> bin/jsencrypt.js
        @echo "var JSEncrypt = JSEncryptExports.JSEncrypt;" >> bin/jsencrypt.js
        @echo "Generating compressed jsencrypt.min.js file"
diff --git a/src/jsencrypt.js b/src/jsencrypt.js
index 14ff1de..a98f59c 100644
--- a/src/jsencrypt.js
+++ b/src/jsencrypt.js
@@ -474,4 +474,5 @@ JSEncrypt.prototype.getPublicKey = function() {
 JSEncrypt.prototype.getPublicKeyB64 = function() {
     // Return the private representation of this key.
     return this.getKey().getPublicBaseKeyB64();
-};
\ No newline at end of file
+};
+