diff --git a/Triangle.AbstractMachine.Disassembler/.gitignore b/Triangle.AbstractMachine.Disassembler/.gitignore
index 0f44a0f..8c107fe 100644
--- a/Triangle.AbstractMachine.Disassembler/.gitignore
+++ b/Triangle.AbstractMachine.Disassembler/.gitignore
@@ -1,2 +1,3 @@
 /target/
 /.classpath
+/build/
diff --git a/Triangle.AbstractMachine.Interpreter/.gitignore b/Triangle.AbstractMachine.Interpreter/.gitignore
index 0f44a0f..8c107fe 100644
--- a/Triangle.AbstractMachine.Interpreter/.gitignore
+++ b/Triangle.AbstractMachine.Interpreter/.gitignore
@@ -1,2 +1,3 @@
 /target/
 /.classpath
+/build/
diff --git a/Triangle.AbstractMachine/.gitignore b/Triangle.AbstractMachine/.gitignore
index 0f44a0f..8c107fe 100644
--- a/Triangle.AbstractMachine/.gitignore
+++ b/Triangle.AbstractMachine/.gitignore
@@ -1,2 +1,3 @@
 /target/
 /.classpath
+/build/
diff --git a/Triangle.Compiler/.gitignore b/Triangle.Compiler/.gitignore
index 981d49f..55f062a 100644
--- a/Triangle.Compiler/.gitignore
+++ b/Triangle.Compiler/.gitignore
@@ -1,3 +1,4 @@
 /target/
 /.classpath
 /.editorconfig
+/build/