1 files changed, 4 insertions, 4 deletions
diff --git a/ext/calendar/calendar.c b/ext/calendar/calendar.c
index bee87059fc..3034a31738 100644
--- a/ext/calendar/calendar.c
+++ b/ext/calendar/calendar.c
@@ -177,7 +177,7 @@ PHP_FUNCTION(cal_info)
 	}
 
 	if (cal < 0 || cal >= CAL_NUM_CALS) {
-		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %d.", cal);
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %ld.", cal);
 		RETURN_FALSE;
 	}
 
@@ -215,7 +215,7 @@ PHP_FUNCTION(cal_days_in_month)
 	}
 
 	if (cal < 0 || cal >= CAL_NUM_CALS) {
-		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %d.", cal);
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %ld.", cal);
 		RETURN_FALSE;
 	}
 
@@ -245,7 +245,7 @@ PHP_FUNCTION(cal_to_jd)
 	}
 
 	if (cal < 0 || cal >= CAL_NUM_CALS) {
-		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %d.", cal);
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %ld.", cal);
 		RETURN_FALSE;
 	}
 
@@ -268,7 +268,7 @@ PHP_FUNCTION(cal_from_jd)
 	}
 
 	if (cal < 0 || cal >= CAL_NUM_CALS) {
-		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %d", cal);
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid calendar ID %ld", cal);
 		RETURN_FALSE;
 	}
 	calendar = &cal_conversion_table[cal];