diff --git a/glslang.spec b/glslang.spec
index 9f5ee74..832415a 100644
--- a/glslang.spec
+++ b/glslang.spec
@@ -60,16 +60,21 @@ compressor's dictionary can find better cross module commonality.
 make %{?_smp_mflags}
 
 %install
+b="%buildroot"
 %cmake_install
 if test "%_lib" != lib; then
-	mkdir -p "%buildroot/%_libdir"
-	mv "%buildroot/%_prefix/lib"/*.a "%buildroot/%_libdir/"
+	mkdir -p "$b/%_libdir"
+	mv "$b/%_prefix/lib"/*.a "$b/%_libdir/"
 fi
+mkdir -p "$b/%_includedir"
+cp -a glslang "$b/%_includedir/"
+find "$b/%_includedir/" -type f ! -iname "*.h" -delete
 
 %files devel
 %defattr(-,root,root)
 %_bindir/gls*
 %_bindir/spirv*
 %_libdir/*.a
+%_includedir/glslang/
 
 %changelog