diff --git a/tests/.gitignore b/tests/.gitignore
new file mode 100644
index 000000000..6f90b6e35
--- /dev/null
+++ b/tests/.gitignore
@@ -0,0 +1,2 @@
+# Generated file created by TF-PSA-Crypto and mbedtls
+/include/test/test_keys.h