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-rw-r--r--src/libstrongswan/debug.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libstrongswan/debug.h b/src/libstrongswan/debug.h
index c3b71cee3..085795acb 100644
--- a/src/libstrongswan/debug.h
+++ b/src/libstrongswan/debug.h
@@ -21,6 +21,8 @@
#ifndef DEBUG_H_
#define DEBUG_H_
+#include <stdio.h>
+
#ifndef DEBUG_LEVEL
# define DEBUG_LEVEL 4
#endif /* DEBUG_LEVEL */