1 files changed, 6 insertions, 1 deletions
diff --git a/qpdf/qpdf-ctest.c b/qpdf/qpdf-ctest.c
index dff7c8c4..3a890a69 100644
--- a/qpdf/qpdf-ctest.c
+++ b/qpdf/qpdf-ctest.c
@@ -1,12 +1,17 @@
 #include <qpdf/qpdf-c.h>
 #include <stdio.h>
-#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
 
 #include <qpdf/qpdf-config.h> // for LL_FMT -- special case in build
 
+#ifdef NDEBUG
+/* We need assert even in a release build for test code. */
+# undef NDEBUG
+#endif
+#include <assert.h>
+
 static char* whoami = 0;
 static qpdf_data qpdf = 0;