diff --git a/src/htmx.js b/src/htmx.js
index 539e1baa..90a98839 100644
--- a/src/htmx.js
+++ b/src/htmx.js
@@ -2277,7 +2277,7 @@ var htmx = (function() {
    * @param {HtmxTriggerSpecification[]} triggerSpecs
    */
   function boostElement(elt, nodeData, triggerSpecs) {
-    if ((elt instanceof HTMLAnchorElement && isLocalLink(elt) && (elt.target === '' || elt.target === '_self')) || elt.tagName === 'FORM') {
+    if ((elt instanceof HTMLAnchorElement && isLocalLink(elt) && (elt.target === '' || elt.target === '_self')) || (elt.tagName === 'FORM' && String(getRawAttribute(elt, 'method')).toLowerCase() !== 'dialog')) {
       nodeData.boosted = true
       let verb, path
       if (elt.tagName === 'A') {
diff --git a/test/attributes/hx-boost.js b/test/attributes/hx-boost.js
index d8156778..e6562e48 100644
--- a/test/attributes/hx-boost.js
+++ b/test/attributes/hx-boost.js
@@ -71,6 +71,14 @@ describe('hx-boost attribute', function() {
     div.innerHTML.should.equal('Boosted')
   })
 
+  it('does not boost forms with method="dialog"', function() {
+    make('<div hx-boost="true"><form id="f1" action="/test" method="dialog"><button id="b1">close</button></form></div>')
+    var form = byId('f1')
+
+    var internalData = htmx._('getInternalData')(form)
+    should.equal(undefined, internalData.boosted)
+  })
+
   it('handles basic anchor properly w/ data-* prefix', function() {
     this.server.respondWith('GET', '/test', 'Boosted')
     var div = make('<div data-hx-target="this" data-hx-boost="true"><a id="a1" href="/test">Foo</a></div>')