diff --git a/src/interfaces/ecpg/include/ecpg_config.h.in b/src/interfaces/ecpg/include/ecpg_config.h.in
index 5d0f448a86..824617b917 100644
--- a/src/interfaces/ecpg/include/ecpg_config.h.in
+++ b/src/interfaces/ecpg/include/ecpg_config.h.in
@@ -7,9 +7,6 @@
 /* Define to 1 if `long int' works and is 64 bits. */
 #undef HAVE_LONG_INT_64
 
-/* Define to 1 if the system has the type `long long int'. */
-#define HAVE_LONG_LONG_INT 1
-
 /* Define to 1 if `long long int' works and is 64 bits. */
 #undef HAVE_LONG_LONG_INT_64