diff --git a/src/include/86box/nv/vid_nv_rivatimer.h b/src/include/86box/nv/vid_nv_rivatimer.h
index a4fe85e92..59f6cfebf 100644
--- a/src/include/86box/nv/vid_nv_rivatimer.h
+++ b/src/include/86box/nv/vid_nv_rivatimer.h
@@ -47,7 +47,7 @@ So I decided to create this timer that is completely separate from the CPU Core.
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdio.h>
-#include <86Box/86box.h>
+#include <86box/86box.h>
 
 #ifdef _WIN32     
 #include <Windows.h>
diff --git a/src/timer.c b/src/timer.c
index 2b92a1958..a3a7c9efb 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -4,7 +4,7 @@
 #include <wchar.h>
 #include <86box/86box.h>
 #include <86box/timer.h>
-#include <86Box/nv/vid_nv_rivatimer.h>
+#include <86box/nv/vid_nv_rivatimer.h>
 
 uint64_t TIMER_USEC;
 uint32_t timer_target;
diff --git a/src/video/nv/nv_rivatimer.c b/src/video/nv/nv_rivatimer.c
index 44e5901d1..12d40c026 100644
--- a/src/video/nv/nv_rivatimer.c
+++ b/src/video/nv/nv_rivatimer.c
@@ -22,7 +22,7 @@ Since Windows XP, QueryPerformanceCounter and QueryPerformanceFrequency cannot f
 
 */
 
-#include <86Box/nv/vid_nv_rivatimer.h>
+#include <86box/nv/vid_nv_rivatimer.h>
 
 #ifdef _WIN32
 LARGE_INTEGER performance_frequency;