diff --git a/Documentation/README.html b/Documentation/README.html
index 726f4aa3cf..02a3042b48 100644
--- a/Documentation/README.html
+++ b/Documentation/README.html
@@ -164,14 +164,22 @@ nuttx/
  |   |   `- README.txt
  |   |- nucleo-f072rb/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-f072rb/README.txt" target="_blank"><i>README.txt</i></a>
+ |   |- nucleo-f091rc/
+ |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-f091rc/README.txt" target="_blank"><i>README.txt</i></a>
  |   |- nucleo-f303re/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-f303re/README.txt" target="_blank"><i>README.txt</i></a>
  |   |- nucleo-f334r8/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-f334r8/README.txt" target="_blank"><i>README.txt</i></a>
  |   |- nucleo-f4x1re/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-f4x1re/README.txt" target="_blank"><b><i>README.txt</i></b></a>
+ |   |- nucleo-l432kc/
+ |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-l432kc/README.txt" target="_blank"><b><i>README.txt</i></b></a>
+ |   |- nucleo-l452re/
+ |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-l452re/README.txt" target="_blank"><b><i>README.txt</i></b></a>
  |   |- nucleo-l476rg/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-l476rg/README.txt" target="_blank"><b><i>README.txt</i></b></a>
+ |   |- nucleo-l496zg/
+ |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nucleo-l496zg/README.txt" target="_blank"><b><i>README.txt</i></b></a>
  |   |- nutiny-nuc120/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/nutiny-nuc120/README.txt" target="_blank"><b><i>README.txt</i></b></a>
  |   |- olimex-efm32g880f129-stk/
diff --git a/README.txt b/README.txt
index 334b501e51..b6144aca71 100644
--- a/README.txt
+++ b/README.txt
@@ -1536,14 +1536,22 @@ nuttx/
  |   |   `- README.txt
  |   |- nucleo-f072rb/
  |   |   `- README.txt
+ |   |- nucleo-f091rc/
+ |   |   `- README.txt
  |   |- nucleo-f303re/
  |   |   `- README.txt
  |   |- nucleo-f334r8/
  |   |   `- README.txt
  |   |- nucleo-f4x1re/
  |   |   `- README.txt
+ |   |- nucleo-l432kc/
+ |   |   `- README.txt
+ |   |- nucleo-l452re/
+ |   |   `- README.txt
  |   |- nucleo-l476rg/
  |   |   `- README.txt
+ |   |- nucleo-l496zg/
+ |   |   `- README.txt
  |   |- nutiny-nuc120/
  |   |   `- README.txt
  |   |- olimex-efm32g880f129-stk/
diff --git a/mm/iob/Make.defs b/mm/iob/Make.defs
index 7c08edd7fb..bdfd11d7c1 100644
--- a/mm/iob/Make.defs
+++ b/mm/iob/Make.defs
@@ -53,4 +53,4 @@ DEPPATH += --dep-path iob
 VPATH += :iob
 CFLAGS += ${shell $(INCDIR) $(INCDIROPT) "$(CC)" $(TOPDIR)$(DELIM)mm$(DELIM)iob}
 
-endif
+endif # CONFIG_MM_IOB
diff --git a/mm/kmm_heap/Make.defs b/mm/kmm_heap/Make.defs
index 9f7ac447a3..66ac454bde 100644
--- a/mm/kmm_heap/Make.defs
+++ b/mm/kmm_heap/Make.defs
@@ -36,6 +36,7 @@
 # Kernel heap allocator
 
 ifeq ($(CONFIG_MM_KERNEL_HEAP),y)
+
 CSRCS += kmm_initialize.c kmm_addregion.c kmm_sem.c
 CSRCS += kmm_brkaddr.c kmm_calloc.c kmm_extend.c kmm_free.c kmm_mallinfo.c
 CSRCS += kmm_malloc.c kmm_memalign.c kmm_realloc.c kmm_zalloc.c
@@ -52,4 +53,5 @@ endif
 
 DEPPATH += --dep-path kmm_heap
 VPATH += :kmm_heap
-endif
+
+endif # CONFIG_MM_KERNEL_HEAP