diff --git a/src/interfaces/ecpg/compatlib/informix.c b/src/interfaces/ecpg/compatlib/informix.c
index 0bca383ebe..dccf39582d 100644
--- a/src/interfaces/ecpg/compatlib/informix.c
+++ b/src/interfaces/ecpg/compatlib/informix.c
@@ -513,7 +513,7 @@ rtoday(date * d)
 }
 
 int
-rjulmdy(date d, short mdy[3])
+rjulmdy(date d, short *mdy)
 {
 	int			mdy_int[3];
 
@@ -564,7 +564,7 @@ rfmtdate(date d, const char *fmt, char *str)
 }
 
 int
-rmdyjul(short mdy[3], date * d)
+rmdyjul(short *mdy, date * d)
 {
 	int			mdy_int[3];