diff --git a/src/interfaces/ecpg/pgtypeslib/numeric.c b/src/interfaces/ecpg/pgtypeslib/numeric.c
index 2e18cffcd32..6ac9ae48ee3 100644
--- a/src/interfaces/ecpg/pgtypeslib/numeric.c
+++ b/src/interfaces/ecpg/pgtypeslib/numeric.c
@@ -1,5 +1,6 @@
 #include "postgres_fe.h"
 #include <ctype.h>
+#include <limits.h>
 
 #include "extern.h"
 #include "pgtypes_error.h"