diff --git a/common_arm64.h b/common_arm64.h
index 5951e1ee5..66a1d1dc4 100644
--- a/common_arm64.h
+++ b/common_arm64.h
@@ -81,10 +81,12 @@ static void __inline blas_lock(volatile BLASULONG *address){
 #if !defined(OS_DARWIN) && !defined (OS_ANDROID)
 static __inline BLASULONG rpcc(void){
   BLASULONG ret = 0;
+  blasint shift;
  
   __asm__ __volatile__ ("isb; mrs %0,cntvct_el0":"=r"(ret));
+  __asm__ __volatile__ ("mrs %0,cntfrq_el0; clz %w0, %w0":"=&r"(shift));
 
-  return ret;
+  return ret << shift;
 }
 
 #define RPCC_DEFINED