diff --git a/c-programming/asprintf.c b/c-programming/asprintf.c
index 4d5dee6..4dbdda5 100644
--- a/c-programming/asprintf.c
+++ b/c-programming/asprintf.c
@@ -17,13 +17,13 @@ ssize_t asprintf(char** strp, char* format, ...) {
 		return -1;
 	}
 
-	*strp = malloc(size + 1);
+	*strp = malloc(++size);
 	if (*strp == NULL) {
 		va_end(args);
 		return -1;
 	}
 
-	ssize_t result = (ssize_t) vsnprintf(*strp, size + 1, format, args);
+	ssize_t result = (ssize_t) vsnprintf(*strp, size, format, args);
 	va_end(args);
 
 	if (result < 0) {