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-rw-r--r--src/common/tusb_fifo.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/common/tusb_fifo.h b/src/common/tusb_fifo.h
index 6e0ecdc82..0276c8044 100644
--- a/src/common/tusb_fifo.h
+++ b/src/common/tusb_fifo.h
@@ -53,6 +53,7 @@ extern "C" {
#endif
#if CFG_FIFO_MUTEX
+#include "osal/osal.h"
#define tu_fifo_mutex_t osal_mutex_t
#endif