diff --git a/src/main/kotlin/no/item/xp/plugin/GenerateCodeTask.kt b/src/main/kotlin/no/item/xp/plugin/GenerateCodeTask.kt
index 8672a57..3a673ae 100644
--- a/src/main/kotlin/no/item/xp/plugin/GenerateCodeTask.kt
+++ b/src/main/kotlin/no/item/xp/plugin/GenerateCodeTask.kt
@@ -7,6 +7,7 @@ import no.item.xp.plugin.extensions.getFormNode
 import no.item.xp.plugin.models.ObjectTypeModel
 import no.item.xp.plugin.parser.parseObjectTypeModel
 import no.item.xp.plugin.parser.resolveMixinGraph
+import no.item.xp.plugin.parser.toMacroModel
 import no.item.xp.plugin.renderers.renderGlobalComponentMap
 import no.item.xp.plugin.renderers.renderGlobalContentTypeMap
 import no.item.xp.plugin.renderers.renderGlobalXDataMap
@@ -138,7 +139,8 @@ open class GenerateCodeTask
             val indexFilePath = Paths.get(targetFilePath.parent.toString(), "index.d.ts")
             val targetFile = File(indexFilePath.toUri())
 
-            val fileContent = renderTypeModelAsTypeScript(right, resolveMixinsImportPath(targetFile, rootOutputDir))
+            val model = if (IS_MACRO.matches(fileInJar.entry.name)) toMacroModel(right) else right
+            val fileContent = renderTypeModelAsTypeScript(model, resolveMixinsImportPath(targetFile, rootOutputDir))
 
             writeTargetFile(targetFile, fileContent, prependText, singleQuote)
             logger.lifecycle("Updated file: ${Path.of(targetFile.toURI()).toUri()}")
diff --git a/src/main/kotlin/no/item/xp/plugin/GenerateTypeScriptWorkAction.kt b/src/main/kotlin/no/item/xp/plugin/GenerateTypeScriptWorkAction.kt
index e1666ca..5e4e5aa 100644
--- a/src/main/kotlin/no/item/xp/plugin/GenerateTypeScriptWorkAction.kt
+++ b/src/main/kotlin/no/item/xp/plugin/GenerateTypeScriptWorkAction.kt
@@ -5,9 +5,12 @@ import arrow.core.right
 import no.item.xp.plugin.extensions.getFormNode
 import no.item.xp.plugin.models.ObjectTypeModel
 import no.item.xp.plugin.parser.parseObjectTypeModel
+import no.item.xp.plugin.parser.toMacroModel
 import no.item.xp.plugin.renderers.renderSiteConfig
 import no.item.xp.plugin.renderers.ts.renderTypeModelAsTypeScript
+import no.item.xp.plugin.util.IS_MACRO
 import no.item.xp.plugin.util.concatFileName
+import no.item.xp.plugin.util.normalizeFilePath
 import no.item.xp.plugin.util.parseXml
 import no.item.xp.plugin.util.simpleFilePath
 import no.item.xp.plugin.util.writeTargetFile
@@ -60,10 +63,13 @@ abstract class GenerateTypeScriptWorkAction : WorkAction<CodegenWorkParameters>
           },
           {
             val fileContent =
-              if (file.absolutePath.endsWith(concatFileName("resources", "site", "site.xml"))) {
-                renderSiteConfig(it, mixinsImportPath)
-              } else {
-                renderTypeModelAsTypeScript(it, mixinsImportPath)
+              when {
+                file.absolutePath.endsWith(concatFileName("resources", "site", "site.xml")) ->
+                  renderSiteConfig(it, mixinsImportPath)
+                IS_MACRO.matches(normalizeFilePath(file)) ->
+                  renderTypeModelAsTypeScript(toMacroModel(it), mixinsImportPath)
+                else ->
+                  renderTypeModelAsTypeScript(it, mixinsImportPath)
               }
 
             writeTargetFile(targetFile, fileContent, parameters.getPrependText().get(), parameters.getSingleQuote().get())
diff --git a/src/main/kotlin/no/item/xp/plugin/parser/ParseMacro.kt b/src/main/kotlin/no/item/xp/plugin/parser/ParseMacro.kt
new file mode 100644
index 0000000..9146c22
--- /dev/null
+++ b/src/main/kotlin/no/item/xp/plugin/parser/ParseMacro.kt
@@ -0,0 +1,26 @@
+package no.item.xp.plugin.parser
+
+import no.item.xp.plugin.models.BooleanField
+import no.item.xp.plugin.models.NumberField
+import no.item.xp.plugin.models.NumberFieldWithValidation
+import no.item.xp.plugin.models.ObjectTypeModel
+import no.item.xp.plugin.models.StringField
+import no.item.xp.plugin.models.UnknownField
+
+/**
+ * The params of a macro are passed in from the HtmlArea, so they are always strings
+ */
+fun toMacroModel(model: ObjectTypeModel): ObjectTypeModel =
+  model.copy(
+    fields =
+      model.fields.map { field ->
+        when (field) {
+          is NumberField,
+          is NumberFieldWithValidation,
+          is BooleanField,
+          is UnknownField,
+          -> StringField(field)
+          else -> field
+        }
+      },
+  )
diff --git a/src/main/kotlin/no/item/xp/plugin/util/TargetFile.kt b/src/main/kotlin/no/item/xp/plugin/util/TargetFile.kt
index 5995e45..4f21a06 100644
--- a/src/main/kotlin/no/item/xp/plugin/util/TargetFile.kt
+++ b/src/main/kotlin/no/item/xp/plugin/util/TargetFile.kt
@@ -7,6 +7,7 @@ val IS_XDATA = "^.*site/x-data.*\$".toRegex(RegexOption.IGNORE_CASE)
 val IS_MIXIN = "^.*site/mixins.*\$".toRegex(RegexOption.IGNORE_CASE)
 val IS_PART = "^.*site/parts.*\$".toRegex(RegexOption.IGNORE_CASE)
 val IS_PAGE = "^.*site/pages.*\$".toRegex(RegexOption.IGNORE_CASE)
+val IS_MACRO = "^.*site/macros.*\$".toRegex(RegexOption.IGNORE_CASE)
 
 fun writeTargetFile(
   targetFile: File,
diff --git a/src/test/kotlin/no/item/xp/plugin/parser/ToMacroModelTest.kt b/src/test/kotlin/no/item/xp/plugin/parser/ToMacroModelTest.kt
new file mode 100644
index 0000000..7fa2fe6
--- /dev/null
+++ b/src/test/kotlin/no/item/xp/plugin/parser/ToMacroModelTest.kt
@@ -0,0 +1,49 @@
+package no.item.xp.plugin.parser
+
+import no.item.xp.plugin.models.BooleanField
+import no.item.xp.plugin.models.NumberField
+import no.item.xp.plugin.models.NumberFieldWithValidation
+import no.item.xp.plugin.models.ObjectTypeModel
+import no.item.xp.plugin.models.StringField
+import no.item.xp.plugin.models.StringFieldWithValidation
+import no.item.xp.plugin.models.UnionOfStringLiteralField
+import no.item.xp.plugin.models.UnknownField
+import org.junit.jupiter.api.Test
+import kotlin.test.assertEquals
+
+class ToMacroModelTest {
+  @Test
+  fun `convert all fields to strings`() {
+    val result =
+      toMacroModel(
+        ObjectTypeModel(
+          "youtube",
+          listOf(
+            NumberField("width", "Width", true, false),
+            NumberFieldWithValidation("height", "Height", false, false, 1, 1000),
+            BooleanField("autoplay", "Autoplay", false, false),
+            UnknownField("other", "Other", true, true),
+            StringField("url", "Url", false, false),
+            StringFieldWithValidation("start", "Start", true, false, "^\\d+$", null),
+            UnionOfStringLiteralField("size", "Size", true, false, listOf("small", "large")),
+          ),
+        ),
+      )
+
+    assertEquals(
+      ObjectTypeModel(
+        "youtube",
+        listOf(
+          StringField("width", "Width", true, false),
+          StringField("height", "Height", false, false),
+          StringField("autoplay", "Autoplay", false, false),
+          StringField("other", "Other", true, true),
+          StringField("url", "Url", false, false),
+          StringFieldWithValidation("start", "Start", true, false, "^\\d+$", null),
+          UnionOfStringLiteralField("size", "Size", true, false, listOf("small", "large")),
+        ),
+      ),
+      result,
+    )
+  }
+}