diff --git a/procps/top.c b/procps/top.c
index b481d395e..908ae8151 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -894,7 +894,7 @@ int top_main(int argc UNUSED_PARAM, char **argv)
 	unsigned lines, col;
 	int lines_rem;
 	unsigned interval;
-	char *sinterval;
+	char *str_interval, *str_iterations;
 	SKIP_FEATURE_TOPMEM(const) unsigned scan_mask = TOP_MASK;
 #if ENABLE_FEATURE_USE_TERMIOS
 	struct termios new_settings;
@@ -917,10 +917,19 @@ int top_main(int argc UNUSED_PARAM, char **argv)
 #endif
 
 	/* all args are options; -n NUM */
-	opt_complementary = "-:n+";
-	if (getopt32(argv, "d:n:b", &sinterval, &iterations) & OPT_d) {
+	opt_complementary = "-";
+	col = getopt32(argv, "d:n:b", &str_interval, &str_iterations);
+	if (col & OPT_d) {
+		/* work around for "-d 1" -> "-d -1" done by getopt32 */
+		if (str_interval[0] == '-')
+			str_interval++;
 		/* Need to limit it to not overflow poll timeout */
-		interval = xatou16(sinterval); /* -d */
+		interval = xatou16(str_interval);
+	}
+	if (col & OPT_n) {
+		if (str_iterations[0] == '-')
+			str_iterations++;
+		iterations = xatou(str_iterations);
 	}
 
 	/* change to /proc */