diff --git a/tools/checkwps/checkwps.make b/tools/checkwps/checkwps.make
index 8e183950be..d980fe46c0 100644
--- a/tools/checkwps/checkwps.make
+++ b/tools/checkwps/checkwps.make
@@ -24,6 +24,7 @@ INCLUDES = -I$(ROOTDIR)/apps/gui \
            -I$(ROOTDIR)/apps/recorder \
            -I$(ROOTDIR)/apps/radio \
            -I$(ROOTDIR)/lib/rbcodec/metadata \
+           -I$(ROOTDIR)/lib/rbcodec/dsp \
            -I$(APPSDIR) \
            -I$(BUILDDIR)