diff --git a/.gitignore b/.gitignore
index 467760b82..f1f660755 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 docs/doxygen/Doxyfile
 docs/html
 docs/latex
+docs/GNSS-SDR_manual.pdf
 src/tests/data/output.dat
 thirdparty/
 .project
\ No newline at end of file
diff --git a/drivers/gr-dbfcttc/build/.gitignore b/drivers/gr-dbfcttc/build/.gitignore
new file mode 100644
index 000000000..86d0cb272
--- /dev/null
+++ b/drivers/gr-dbfcttc/build/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
\ No newline at end of file
diff --git a/drivers/gr-gn3s/build/.gitignore b/drivers/gr-gn3s/build/.gitignore
new file mode 100644
index 000000000..86d0cb272
--- /dev/null
+++ b/drivers/gr-gn3s/build/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
\ No newline at end of file