diff --git a/targets/TARGET_TOSHIBA/TARGET_TMPM46B/Periph_Driver/inc/tmpm46b_esg.h b/targets/TARGET_TOSHIBA/TARGET_TMPM46B/Periph_Driver/inc/tmpm46b_esg.h
index f3546108cd..77aca84945 100644
--- a/targets/TARGET_TOSHIBA/TARGET_TMPM46B/Periph_Driver/inc/tmpm46b_esg.h
+++ b/targets/TARGET_TOSHIBA/TARGET_TMPM46B/Periph_Driver/inc/tmpm46b_esg.h
@@ -20,7 +20,7 @@ extern "C" {
 #endif
 
 /* Includes ------------------------------------------------------------------*/
-#include "tmpm46b.h"
+#include "TMPM46B.h"
 #include "tx04_common.h"     
 
 /** @addtogroup TX04_Periph_Driver