Update Makefile
diff --git a/Makefile b/Makefile
index 090c420..f098c05 100644
--- a/Makefile
+++ b/Makefile
@@ -99,7 +99,7 @@
 verify-all-gl: $(dv-targets-gl)
 
 .PHONY: verify-all-gl-sdf
-verify-all-gl-sdf: dv-targets-gl-sdf
+verify-all-gl-sdf: $(dv-targets-gl-sdf)
 
 $(dv-targets-rtl): SIM=RTL
 $(dv-targets-rtl): verify-%-rtl: $(dv_base_dependencies)