diff --git a/.gitignore b/.gitignore
index 81c4d5e862..1e15ce5fc1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,6 +19,8 @@ objfiles.txt
 lcov.info
 *.vcproj
 win32ver.rc
+*.exe
+lib*dll.def
 
 # Local excludes in root directory
 /GNUmakefile
diff --git a/src/backend/.gitignore b/src/backend/.gitignore
index 566eb10a5a..4e04ff0575 100644
--- a/src/backend/.gitignore
+++ b/src/backend/.gitignore
@@ -1 +1,2 @@
 /postgres
+/postgres.def