1 files changed, 2 insertions, 1 deletions
diff --git a/dh.c b/dh.c
index a30b704f..e8ce3d1a 100644
--- a/dh.c
+++ b/dh.c
@@ -45,7 +45,8 @@ parse_prime(int linenum, char *line, struct dhgroup *dhg)
 	char *strsize, *gen, *prime;
 
 	cp = line;
-	arg = strdelim(&cp);
+	if ((arg = strdelim(&cp)) == NULL)
+		return 0;
 	/* Ignore leading whitespace */
 	if (*arg == '\0')
 		arg = strdelim(&cp);