diff --git a/gstreamer1-plugins-bad-free.spec b/gstreamer1-plugins-bad-free.spec
index d208c6e..3726612 100644
--- a/gstreamer1-plugins-bad-free.spec
+++ b/gstreamer1-plugins-bad-free.spec
@@ -88,6 +88,8 @@ BuildRequires:  srt-devel
 BuildRequires:  wpewebkit-devel
 BuildRequires:  wpebackend-fdo-devel
 %endif
+BuildRequires:  glslc
+BuildRequires:  libdrm-devel
 
 %if %{with extras}
 BuildRequires:  libbs2b-devel >= 3.1.0