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diff --git a/docs/nspr/reference/pr_unblockclockinterrupts.rst b/docs/nspr/reference/pr_unblockclockinterrupts.rst
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+PR_UnblockClockInterrupts
+=========================
+
+Unblocks the timer signal used for preemptive scheduling.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prinit.h>
+
+   void PR_UnblockClockInterrupts(void);