diff --git a/fuzz/CMakeLists.txt b/fuzz/CMakeLists.txt
index 04743005..db9bfd71 100644
--- a/fuzz/CMakeLists.txt
+++ b/fuzz/CMakeLists.txt
@@ -108,7 +108,8 @@ set(CORPUS_OTHER
   27393.fuzz
   28262.fuzz
   30507.fuzz
-  37740.fuzz)
+  37740.fuzz
+  57639.fuzz)
 
 set(CORPUS_DIR ${CMAKE_CURRENT_BINARY_DIR}/qpdf_corpus)
 file(MAKE_DIRECTORY ${CORPUS_DIR})
diff --git a/fuzz/qpdf_extra/57639.fuzz b/fuzz/qpdf_extra/57639.fuzz
new file mode 100644
index 00000000..053735e6
Binary files /dev/null and b/fuzz/qpdf_extra/57639.fuzz differ
diff --git a/fuzz/qtest/fuzz.test b/fuzz/qtest/fuzz.test
index d234ce79..26995dac 100644
--- a/fuzz/qtest/fuzz.test
+++ b/fuzz/qtest/fuzz.test
@@ -20,7 +20,7 @@ my @fuzzers = (
     ['pngpredictor' => 1],
     ['runlength' => 6],
     ['tiffpredictor' => 1],
-    ['qpdf' => 52],             # increment when adding new files
+    ['qpdf' => 53],             # increment when adding new files
     );
 
 my $n_tests = 0;