diff --git a/en/Makefile b/en/Makefile
index ae732c8..8b45183 100644
--- a/en/Makefile
+++ b/en/Makefile
@@ -5,6 +5,8 @@
 SPHINXOPTS    =
 ifeq ($(UNAME),Darwin)
 	SPHINXBUILD   = sphinx-build
+else if ($(UNAME),Linux)
+	SPHINXBUILD = sphinx-build
 else
 	SPHINXBUILD   = /usr/lib/python-exec/python2.7/sphinx-build
 endif
diff --git a/ru/Makefile b/ru/Makefile
index ae732c8..8b45183 100644
--- a/ru/Makefile
+++ b/ru/Makefile
@@ -5,6 +5,8 @@
 SPHINXOPTS    =
 ifeq ($(UNAME),Darwin)
 	SPHINXBUILD   = sphinx-build
+else if ($(UNAME),Linux)
+	SPHINXBUILD = sphinx-build
 else
 	SPHINXBUILD   = /usr/lib/python-exec/python2.7/sphinx-build
 endif