diff --git a/fifa17-recon/data/memdump/.gitignore b/fifa17-recon/data/memdump/.gitignore
new file mode 100644
index 0000000..5767b56
--- /dev/null
+++ b/fifa17-recon/data/memdump/.gitignore
@@ -0,0 +1,4 @@
+# Raw /proc/PID/mem captures: regenerate with tools/db_dump.py, never commit.
+# One of these directories reached 2.3GB.
+data/memdump/*.bin
+data/memdump/*.raw