diff --git a/libs/esl/Makefile.am b/libs/esl/Makefile.am
index 34220ee0d7..3d701a7951 100644
--- a/libs/esl/Makefile.am
+++ b/libs/esl/Makefile.am
@@ -96,4 +96,7 @@ phpmod-install: phpmod
 pymod-install: pymod
 	$(MAKE) -C python install
 
+rubymod-install: rubymod
+	$(MAKE) -C ruby install
+
 everymod: perlmod phpmod luamod pymod rubymod javamod managedmod
diff --git a/libs/esl/ruby/Makefile b/libs/esl/ruby/Makefile
index 177b448143..ef7cbacc80 100644
--- a/libs/esl/ruby/Makefile
+++ b/libs/esl/ruby/Makefile
@@ -1,5 +1,7 @@
-LOCAL_LDFLAGS=$(shell ruby -rrbconfig -e 'puts RbConfig::CONFIG["LIBRUBYARG"]')
-LOCAL_CFLAGS=$(shell ruby cflags.rb)
+RUBY:=ruby
+LOCAL_LDFLAGS=$(shell $(RUBY) -rrbconfig -e 'puts RbConfig::CONFIG["LIBRUBYARG"]')
+LOCAL_CFLAGS=$(shell $(RUBY) cflags.rb)
+RUBY_GEM_DIR=$(shell $(RUBY) -e 'puts Gem.dir')
 
 all: ESL.so
 
@@ -12,6 +14,10 @@ esl_wrap.o: esl_wrap.cpp
 ESL.so: esl_wrap.o
 	$(CXX) $(SOLINK) esl_wrap.o $(MYLIB) $(LOCAL_LDFLAGS) -o ESL.so -L. $(LIBS)
 
+
+install: ESL.so
+	install -m 755 ESL.so $(RUBY_GEM_DIR)
+
 clean:
 	rm -f *.o *.so *~
 
diff --git a/libs/esl/ruby/cflags.rb b/libs/esl/ruby/cflags.rb
index 45c10b1727..5a269c9468 100644
--- a/libs/esl/ruby/cflags.rb
+++ b/libs/esl/ruby/cflags.rb
@@ -3,6 +3,6 @@ require 'rbconfig'
 cflags = if RUBY_VERSION =~ /1.9/ then
   "-I#{RbConfig::CONFIG['rubyhdrdir']} -I#{RbConfig::CONFIG['rubyhdrdir']}/#{RbConfig::CONFIG['arch']}"
 else
-  "-I#{RbConfig::CONFIG["topdir"]}"
+  "-I#{RbConfig::CONFIG["topdir"]} -I#{RbConfig::CONFIG['rubyhdrdir']} -I#{RbConfig::CONFIG['rubyhdrdir']}/#{RbConfig::CONFIG['arch']}"
 end
-puts cflags
\ No newline at end of file
+puts cflags