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-rw-r--r--arch/um/os-Linux/process.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index d32413e4b4c..d9c52387c4a 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -3,6 +3,7 @@
* Licensed under the GPL
*/
+#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <signal.h>