diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index 5857501..42260e9 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -56,7 +56,7 @@
 /*******************************************************************************
  * Mandatory common functions
  ******************************************************************************/
-uint64_t plat_get_syscnt_freq(void);
+unsigned long long plat_get_syscnt_freq(void);
 int plat_get_image_source(unsigned int image_id,
 			uintptr_t *dev_handle,
 			uintptr_t *image_spec);