diff --git a/Formula/sdformat11.rb b/Formula/sdformat11.rb
index 8467a8994..284b6d502 100644
--- a/Formula/sdformat11.rb
+++ b/Formula/sdformat11.rb
@@ -17,6 +17,7 @@ class Sdformat11 < Formula
   depends_on "pkg-config" => [:build, :test]
 
   depends_on "doxygen"
+  depends_on "ignition-cmake2"
   depends_on "ignition-math6"
   depends_on "ignition-tools"
   depends_on "ignition-utils1"
diff --git a/Formula/sdformat12.rb b/Formula/sdformat12.rb
index da82bfb7b..9802d89a8 100644
--- a/Formula/sdformat12.rb
+++ b/Formula/sdformat12.rb
@@ -15,6 +15,7 @@ class Sdformat12 < Formula
   depends_on "pkg-config" => [:build, :test]
 
   depends_on "doxygen"
+  depends_on "ignition-cmake2"
   depends_on "ignition-math6"
   depends_on "ignition-tools"
   depends_on "ignition-utils1"
diff --git a/Formula/sdformat13.rb b/Formula/sdformat13.rb
index 7eef917bf..542c3fb22 100644
--- a/Formula/sdformat13.rb
+++ b/Formula/sdformat13.rb
@@ -9,6 +9,7 @@ class Sdformat13 < Formula
   depends_on "pkg-config" => [:build, :test]
 
   depends_on "doxygen"
+  depends_on "ignition-cmake2"
   depends_on "ignition-math7"
   depends_on "ignition-tools"
   depends_on "ignition-utils2"