diff --git a/src/apps/bin/bison/config.h b/src/apps/bin/bison/config.h
index e99e857e64..6830954f68 100644
--- a/src/apps/bin/bison/config.h
+++ b/src/apps/bin/bison/config.h
@@ -234,7 +234,7 @@
 #define HAVE_TIMES 1
 
 /* Define to 1 if the system has the type `uintptr_t'. */
-//#define HAVE_UINTPTR_T 1
+#define HAVE_UINTPTR_T 1
 
 /* Define to 1 if you have the <unistd.h> header file. */
 #define HAVE_UNISTD_H 1