Fixed typo in variable name
diff --git a/Makefile b/Makefile
index 2609bcb..1cd7bbd 100644
--- a/Makefile
+++ b/Makefile
@@ -374,7 +374,7 @@
ifeq ($(HAS_PKG_CONFIG),true)
OPENSSL_ALPN_CHECK_CMD = $(PKG_CONFIG) --atleast-version=1.0.2 openssl
-OPENSSL_ALPN_CHECK_CMD = $(PKG_CONFIG) --atleast-version=1.0.1 openssl
+OPENSSL_NPN_CHECK_CMD = $(PKG_CONFIG) --atleast-version=1.0.1 openssl
ZLIB_CHECK_CMD = $(PKG_CONFIG) --exists zlib
PERFTOOLS_CHECK_CMD = $(PKG_CONFIG) --exists profiler
PROTOBUF_CHECK_CMD = $(PKG_CONFIG) --atleast-version=3.0.0-alpha-3 protobuf
diff --git a/templates/Makefile.template b/templates/Makefile.template
index 6de63f3..d8ba6fd 100644
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@@ -399,7 +399,7 @@
ifeq ($(HAS_PKG_CONFIG),true)
OPENSSL_ALPN_CHECK_CMD = $(PKG_CONFIG) --atleast-version=1.0.2 openssl
-OPENSSL_ALPN_CHECK_CMD = $(PKG_CONFIG) --atleast-version=1.0.1 openssl
+OPENSSL_NPN_CHECK_CMD = $(PKG_CONFIG) --atleast-version=1.0.1 openssl
ZLIB_CHECK_CMD = $(PKG_CONFIG) --exists zlib
PERFTOOLS_CHECK_CMD = $(PKG_CONFIG) --exists profiler
PROTOBUF_CHECK_CMD = $(PKG_CONFIG) --atleast-version=3.0.0-alpha-3 protobuf