diff --git a/build/windows/installer/lang/.gitignore b/build/windows/installer/lang/.gitignore
index d1dfddc581..eaf94f9aa7 100644
--- a/build/windows/installer/lang/.gitignore
+++ b/build/windows/installer/lang/.gitignore
@@ -1,5 +1,6 @@
 /Makefile
 /Makefile.in
 /setup.isl
+/setup.isl.in
 /*.setup.isl
-/isl-stamp
+/stamp-isl
diff --git a/extensions/goat-exercises/.gitignore b/extensions/goat-exercises/.gitignore
index 4b463249d4..652a035ca0 100644
--- a/extensions/goat-exercises/.gitignore
+++ b/extensions/goat-exercises/.gitignore
@@ -6,3 +6,4 @@
 /goat-exercise-c.exe
 /goat-exercise-vala.c
 /goat_exercise_vala_vala.stamp
+/org.gimp.extension.goat-exercises.metainfo.xml.in
diff --git a/po-windows-installer/.gitignore b/po-windows-installer/.gitignore
index 8178716b61..11dfbcd2a4 100644
--- a/po-windows-installer/.gitignore
+++ b/po-windows-installer/.gitignore
@@ -2,6 +2,7 @@
 /*.mo
 /*.pot
 /.intltool-merge-cache
+/.intltool-merge-cache.lock
 /Makefile
 /Makefile.in
 /POTFILES