X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Futils.c;h=766f224c7e167118d30dbd99c6b32595b4fe99e4;hp=4b733fb5cc346ead97b928809c9056eb42290904;hb=6addfa379ee608b20cfe5e15d135bcb6a9724e90;hpb=9529ec1bb6fef73453a8666ea01c71be3ce0a463

diff --git a/src/common/utils.c b/src/common/utils.c
index 4b733fb5c..766f224c7 100644
--- a/src/common/utils.c
+++ b/src/common/utils.c
@@ -1050,9 +1050,11 @@ char *utils_generate_optstring(const struct option *long_options,
 			break;
 		}
 
-		optstring[str_pos++] = (char)long_options[i].val;
-		if (long_options[i].has_arg) {
-			optstring[str_pos++] = ':';
+		if (long_options[i].val != '\0') {
+			optstring[str_pos++] = (char) long_options[i].val;
+			if (long_options[i].has_arg) {
+				optstring[str_pos++] = ':';
+			}
 		}
 	}