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-rw-r--r--src/util/pactree.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/util/pactree.c b/src/util/pactree.c
index b8832912..11ca4b9e 100644
--- a/src/util/pactree.c
+++ b/src/util/pactree.c
@@ -19,6 +19,7 @@
#include "config.h"
+#include <ctype.h>
#include <getopt.h>
#include <stdio.h>
#include <string.h>