diff --git a/src/modules/Gdbm/gdbmmod.c b/src/modules/Gdbm/gdbmmod.c
index f6d6e58b329e89a9104542f3c113eb88b4fa98ea..13ca3e570919a10704700eeaf75ca0c2eafcdfbb 100644
--- a/src/modules/Gdbm/gdbmmod.c
+++ b/src/modules/Gdbm/gdbmmod.c
@@ -20,6 +20,9 @@
 
 #if defined(HAVE_GDBM_H) && defined(HAVE_LIBGDBM)
 
+/* This symbol conflicts with the Gdbm 1.13 header files. */
+#undef fatal
+
 #include <gdbm.h>
 
 #ifdef _REENTRANT