diff --git a/Docs/cmake-mode.el b/Docs/cmake-mode.el
index 160f0ecb5..a32f02b6d 100644
--- a/Docs/cmake-mode.el
+++ b/Docs/cmake-mode.el
@@ -55,9 +55,9 @@
                                        "\\|" "[ \t\r\n]"
                                        "\\)*"))
 (defconst cmake-regex-block-open
-  "^\\(IF\\|MACRO\\|FOREACH\\|ELSE\\|WHILE\\)$")
+  "^\\(IF\\|MACRO\\|FOREACH\\|ELSE\\|ELSEIF\\|WHILE\\)$")
 (defconst cmake-regex-block-close
-  "^[ \t]*\\(ENDIF\\|ENDFOREACH\\|ENDMACRO\\|ELSE\\|ENDWHILE\\)[ \t]*(")
+  "^[ \t]*\\(ENDIF\\|ENDFOREACH\\|ENDMACRO\\|ELSE\\|ELSEIF\\|ENDWHILE\\)[ \t]*(")
 
 ;------------------------------------------------------------------------------