diff --git a/t/diff-lib.sh b/t/diff-lib.sh
old mode 100755
new mode 100644
diff --git a/t/lib-read-tree-m-3way.sh b/t/lib-read-tree-m-3way.sh
old mode 100755
new mode 100644
diff --git a/t/t4201-shortlog.sh b/t/t4201-shortlog.sh
old mode 100644
new mode 100755
diff --git a/t/t6023-merge-file.sh b/t/t6023-merge-file.sh
old mode 100644
new mode 100755
diff --git a/t/t6024-recursive-merge.sh b/t/t6024-recursive-merge.sh
old mode 100644
new mode 100755
diff --git a/t/t6025-merge-symlinks.sh b/t/t6025-merge-symlinks.sh
old mode 100644
new mode 100755
diff --git a/t/test-lib.sh b/t/test-lib.sh
old mode 100755
new mode 100644