diff --git a/ext/intl/grapheme/grapheme_string.c b/ext/intl/grapheme/grapheme_string.c
index 9bc7796cc35f6..7db90b45c51f4 100644
--- a/ext/intl/grapheme/grapheme_string.c
+++ b/ext/intl/grapheme/grapheme_string.c
@@ -1048,9 +1048,10 @@ PHP_FUNCTION(grapheme_levenshtein)
 		goto out_collator;
 	}
 
-	zend_long *p1, *p2, *tmp;
-	p1 = safe_emalloc(strlen_2 + 1, sizeof(zend_long), 0);
-	p2 = safe_emalloc(strlen_2 + 1, sizeof(zend_long), 0);
+	zend_long *pbuf, *p1, *p2, *tmp;
+	pbuf = safe_emalloc(strlen_2 + 1, sizeof(zend_long) * 2, 0);
+	p1 = pbuf;
+	p2 = p1 + (strlen_2 + 1);
 
 	for (i2 = 0; i2 <= strlen_2; i2++) {
 		p1[i2] = i2 * cost_ins;
@@ -1098,8 +1099,7 @@ PHP_FUNCTION(grapheme_levenshtein)
 	retval = p1[strlen_2];
 	RETVAL_LONG(retval);
 
-	efree(p2);
-	efree(p1);
+	efree(pbuf);
 
 out_collator:
 	ucol_close(collator);