diff --git a/rules/aip0133/http_uri_resource.go b/rules/aip0133/http_uri_resource.go
index 433cf531e..25ac5b8a5 100644
--- a/rules/aip0133/http_uri_resource.go
+++ b/rules/aip0133/http_uri_resource.go
@@ -36,6 +36,12 @@ var httpURIResource = &lint.MethodRule{
 		// Extract the suffix of the URI path as the collection identifier.
 		uriParts := strings.Split(utils.GetHTTPRules(m)[0].URI, "/")
 		collectionName := uriParts[len(uriParts)-1]
+		// Custom Method Standard Create lookalikes can still be linted, but
+		// don't include the custom method http suffix
+		// e.g. .../books:createAndCheckout --> books.
+		if strings.Contains(collectionName, ":") {
+			collectionName = strings.Split(collectionName, ":")[0]
+		}
 
 		// Ensure that a collection identifier is provided.
 		if collectionName == "" {
diff --git a/rules/aip0133/http_uri_resource_test.go b/rules/aip0133/http_uri_resource_test.go
index e879a630e..eaf0f799b 100644
--- a/rules/aip0133/http_uri_resource_test.go
+++ b/rules/aip0133/http_uri_resource_test.go
@@ -30,9 +30,11 @@ func TestHTTPURIResource(t *testing.T) {
 		problems testutils.Problems
 	}{
 		{"Valid", "/v1/{parent=publishers/*}/books", "publishers/{publisher}/books/{book}", nil},
+		{"ValidCustomLookalike", "/v1/{parent=publishers/*}/books:createAndCheckout", "publishers/{publisher}/books/{book}", nil},
 		{"MethodMissingURIPath", "", "publishers/{publisher}/books/{book}", nil},
 		{"MethodMissingCollectionURISuffix", "/v1/", "publishers/{publisher}/books/{book}", testutils.Problems{{Message: "The URI path does not end in a collection identifier."}}},
 		{"ResourceMissingCollectionInPattern", "/v1/{parent=publishers/*}/books", "publishers/{publisher}", testutils.Problems{{Message: "Resource pattern should contain the collection identifier \"books/\"."}}},
+		{"ResourceMissingCollectionCustomLookalike", "/v1/{parent=publishers/*}/books:createAndCheckout", "publishers/{publisher}", testutils.Problems{{Message: "Resource pattern should contain the collection identifier \"books/\"."}}},
 	}
 
 	for _, test := range tests {