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-rw-r--r--tests/sys/net/randsleep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/sys/net/randsleep.c b/tests/sys/net/randsleep.c
index a602d06921e7e..8bbad5b7557d5 100644
--- a/tests/sys/net/randsleep.c
+++ b/tests/sys/net/randsleep.c
@@ -37,7 +37,7 @@
#include <stdlib.h>
#include <unistd.h>
-#define RANDOM_MAX ((1<<31) - 1)
+#define RANDOM_MAX (((long)1<<31) - 1)
int main(int argc, char** argv){
useconds_t max_usecs, usecs;