diff --git a/tests/footnote_epub3_example/book.toml b/tests/footnote_epub3_example/book.toml
index 770dd0674..24fce100f 100644
--- a/tests/footnote_epub3_example/book.toml
+++ b/tests/footnote_epub3_example/book.toml
@@ -1,5 +1,5 @@
 [book]
-title = "Footnote Epub3"
+title = "FootnoteEpub3Example"
 authors = []
 multilingual = false
 src = "src"
diff --git a/tests/long_book_example/book.toml b/tests/long_book_example/book.toml
index 45b8b54f5..2a3e9d805 100644
--- a/tests/long_book_example/book.toml
+++ b/tests/long_book_example/book.toml
@@ -1,5 +1,5 @@
 [book]
-title = "Long Book"
+title = "LongBookExample"
 authors = []
 multilingual = false
 src = "src"
diff --git a/tests/remote_image_fetch/book.toml b/tests/remote_image_fetch/book.toml
index 5291f796a..9ccbef6e1 100644
--- a/tests/remote_image_fetch/book.toml
+++ b/tests/remote_image_fetch/book.toml
@@ -1,5 +1,5 @@
 [book]
-title = "Remote Image Fetch"
+title = "RemoteImageFetchExample"
 authors = []
 multilingual = false
 src = "src"
diff --git a/tests/straight_quotes_into_curly_quotes/book.toml b/tests/straight_quotes_into_curly_quotes/book.toml
index 421118f04..54adc8e78 100644
--- a/tests/straight_quotes_into_curly_quotes/book.toml
+++ b/tests/straight_quotes_into_curly_quotes/book.toml
@@ -1,5 +1,5 @@
 [book]
-title = "Curly quotes Book"
+title = "CurlyQuotesBookExample"
 authors = []
 multilingual = false
 src = "src"