diff --git a/.gitignore b/.gitignore
index 2ae33250b3..72399b5f92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,7 +61,6 @@ tx.exe
 coverage
 .nyc_output
 
-build
 *.log
 test/files/normalise.jpg.png
 test/files/normalise-resized.jpg
diff --git a/build/.gitignore b/build/.gitignore
new file mode 100644
index 0000000000..9addbff7eb
--- /dev/null
+++ b/build/.gitignore
@@ -0,0 +1,4 @@
+*
+*/
+!export
+!.gitignore
diff --git a/build/export/.gitignore b/build/export/.gitignore
new file mode 100644
index 0000000000..49ca10c54e
--- /dev/null
+++ b/build/export/.gitignore
@@ -0,0 +1,2 @@
+.
+!.gitignore