diff --git a/compiler-rt/lib/profile/InstrProfilingWriter.c b/compiler-rt/lib/profile/InstrProfilingWriter.c
--- a/compiler-rt/lib/profile/InstrProfilingWriter.c
+++ b/compiler-rt/lib/profile/InstrProfilingWriter.c
@@ -286,7 +286,7 @@
   /* On WIN64, label differences are truncated 32-bit values. Truncate
    * CountersDelta to match. */
 #ifdef _WIN64
-  Header.CountersDelta = (void *)(uint32_t)Header.CountersDelta;
+  Header.CountersDelta = (uint32_t)Header.CountersDelta;
 #endif
 
   /* Write the profile header. */