diff --git a/doc/nil/Doxyfile_chm b/doc/nil/Doxyfile_chm
index b8a583daf..84c60996e 100644
--- a/doc/nil/Doxyfile_chm
+++ b/doc/nil/Doxyfile_chm
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/NIL
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.1.2
+PROJECT_NUMBER         = 1.1.3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/nil/Doxyfile_html b/doc/nil/Doxyfile_html
index 908bf584d..6d76a8dbf 100644
--- a/doc/nil/Doxyfile_html
+++ b/doc/nil/Doxyfile_html
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/NIL
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.1.2
+PROJECT_NUMBER         = 1.1.3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/rt/Doxyfile_chm b/doc/rt/Doxyfile_chm
index 60ce083d0..ffe0d6ca7 100644
--- a/doc/rt/Doxyfile_chm
+++ b/doc/rt/Doxyfile_chm
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/RT
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 3.1.4
+PROJECT_NUMBER         = 3.1.5
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/rt/Doxyfile_html b/doc/rt/Doxyfile_html
index 909ab3844..0dcebdf8f 100644
--- a/doc/rt/Doxyfile_html
+++ b/doc/rt/Doxyfile_html
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/RT
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 3.1.4
+PROJECT_NUMBER         = 3.1.5
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/os/rt/include/ch.h b/os/rt/include/ch.h
index 981ee3a4f..e842bd451 100644
--- a/os/rt/include/ch.h
+++ b/os/rt/include/ch.h
@@ -48,7 +48,7 @@
 /**
  * @brief   Kernel version string.
  */
-#define CH_KERNEL_VERSION       "3.1.4"
+#define CH_KERNEL_VERSION       "3.1.5"
 
 /**
  * @brief   Kernel version major number.
@@ -63,7 +63,7 @@
 /**
  * @brief   Kernel version patch number.
  */
-#define CH_KERNEL_PATCH         4
+#define CH_KERNEL_PATCH         5
 /** @} */
 
 /* Core headers.*/
diff --git a/testhal/STM32/STM32F1xx/RTC/Makefile b/testhal/STM32/STM32F1xx/RTC/Makefile
index 9425ce988..b4c22d586 100644
--- a/testhal/STM32/STM32F1xx/RTC/Makefile
+++ b/testhal/STM32/STM32F1xx/RTC/Makefile
@@ -113,6 +113,7 @@ CSRC = $(STARTUPSRC) \
        $(PLATFORMSRC) \
        $(BOARDSRC) \
        $(TESTSRC) \
+       $(CHIBIOS)/os/various/syscalls.c \
        main.c
 
 # C++ sources that can be compiled in ARM or THUMB mode depending on the global