diff --git a/jenkins_jobs/modules/builders.py b/jenkins_jobs/modules/builders.py
index 58d798e14..b5a1a7fc7 100644
--- a/jenkins_jobs/modules/builders.py
+++ b/jenkins_jobs/modules/builders.py
@@ -1789,13 +1789,6 @@ def conditional_step(registry, xml_parent, data):
                 )
                 build_condition(condition, conditions_container_tag, "condition")
 
-    def build_step(parent, step):
-        for edited_node in create_builders(registry, step):
-            if not has_multiple_steps:
-                edited_node.set("class", edited_node.tag)
-                edited_node.tag = "buildStep"
-            parent.append(edited_node)
-
     cond_builder_tag = (
         "org.jenkinsci.plugins.conditionalbuildstep."
         "singlestep.SingleConditionalBuilder"
@@ -1803,8 +1796,14 @@ def conditional_step(registry, xml_parent, data):
     cond_builders_tag = (
         "org.jenkinsci.plugins.conditionalbuildstep." "ConditionalBuilder"
     )
-    steps = data["steps"]
-    has_multiple_steps = len(steps) > 1
+    # A builder could be a macro, so it's required to create builders at first
+    # to set `has_multiple_steps` flag correctly.
+    edited_nodes = [
+        edited_node
+        for step in data["steps"]
+        for edited_node in create_builders(registry, step)
+    ]
+    has_multiple_steps = len(edited_nodes) > 1
 
     if has_multiple_steps:
         root_tag = XML.SubElement(xml_parent, cond_builders_tag)
@@ -1827,8 +1826,11 @@ def conditional_step(registry, xml_parent, data):
     }
     evaluation_class = evaluation_classes[data.get("on-evaluation-failure", "fail")]
     XML.SubElement(root_tag, "runner").set("class", evaluation_class)
-    for step in steps:
-        build_step(steps_parent, step)
+    for edited_node in edited_nodes:
+        if not has_multiple_steps:
+            edited_node.set("class", edited_node.tag)
+            edited_node.tag = "buildStep"
+        steps_parent.append(edited_node)
 
 
 def maven_builder(registry, xml_parent, data):
diff --git a/tests/macros/fixtures/builder/conditional-step_inner-macro-expansion-002.xml b/tests/macros/fixtures/builder/conditional-step_inner-macro-expansion-002.xml
new file mode 100644
index 000000000..9e8416cfd
--- /dev/null
+++ b/tests/macros/fixtures/builder/conditional-step_inner-macro-expansion-002.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <actions/>
+  <description>&lt;!-- Managed by Jenkins Job Builder --&gt;</description>
+  <keepDependencies>false</keepDependencies>
+  <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
+  <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
+  <concurrentBuild>false</concurrentBuild>
+  <canRoam>true</canRoam>
+  <properties/>
+  <scm class="hudson.scm.NullSCM"/>
+  <builders>
+    <org.jenkinsci.plugins.conditionalbuildstep.ConditionalBuilder>
+      <conditionalbuilders>
+        <hudson.tasks.Shell>
+          <command>first</command>
+        </hudson.tasks.Shell>
+        <hudson.tasks.Shell>
+          <command>second</command>
+        </hudson.tasks.Shell>
+      </conditionalbuilders>
+      <runCondition class="org.jenkins_ci.plugins.run_condition.core.FileExistsCondition">
+        <file>filename</file>
+        <baseDir class="org.jenkins_ci.plugins.run_condition.common.BaseDirectory$Workspace"/>
+      </runCondition>
+      <runner class="org.jenkins_ci.plugins.run_condition.BuildStepRunner$Fail"/>
+    </org.jenkinsci.plugins.conditionalbuildstep.ConditionalBuilder>
+  </builders>
+  <publishers/>
+  <buildWrappers/>
+</project>
diff --git a/tests/macros/fixtures/builder/conditional-step_inner-macro-expansion-002.yaml b/tests/macros/fixtures/builder/conditional-step_inner-macro-expansion-002.yaml
new file mode 100644
index 000000000..52a49ed63
--- /dev/null
+++ b/tests/macros/fixtures/builder/conditional-step_inner-macro-expansion-002.yaml
@@ -0,0 +1,19 @@
+- builder:
+    name: Macro
+    builders:
+        - shell: "first"
+        - shell: "second"
+
+- job:
+    name: Job
+    builders:
+        - conditional-step:
+            condition-kind: file-exists
+            condition-filename: 'filename'
+            steps:
+                - Macro
+
+- project:
+    name: meow
+    jobs:
+      - Job