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-rw-r--r--test cases/common/18 array/prog.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/test cases/common/18 array/prog.c b/test cases/common/18 array/prog.c
index 51204b9d4..f794e1b1f 100644
--- a/test cases/common/18 array/prog.c
+++ b/test cases/common/18 array/prog.c
@@ -1,3 +1,3 @@
-extern int func();
+extern int func(void);
int main(void) { return func(); }