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-rw-r--r--fish/fish.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fish/fish.c b/fish/fish.c
index a956bf9e..1309c680 100644
--- a/fish/fish.c
+++ b/fish/fish.c
@@ -28,6 +28,7 @@
#include <getopt.h>
#include <signal.h>
#include <assert.h>
+#include <ctype.h>
#ifdef HAVE_LIBREADLINE
#include <readline/readline.h>