diff --git a/src/mod/asr_tts/mod_pocketsphinx/Makefile b/src/mod/asr_tts/mod_pocketsphinx/Makefile
index e3d795fb60..6a5ab196c2 100644
--- a/src/mod/asr_tts/mod_pocketsphinx/Makefile
+++ b/src/mod/asr_tts/mod_pocketsphinx/Makefile
@@ -41,7 +41,7 @@ $(POCKETSPHINX_DIR):
 
 $(POCKETSPHINX_BUILDDIR)/Makefile: $(POCKETSPHINX_DIR) $(SPHINXBASE_LA) $(SPHINXBASE_LA2)
 	mkdir -p $(POCKETSPHINX_BUILDDIR)
-	(cd $(POCKETSPHINX_BUILDDIR) && $(DEFAULT_VARS) $(POCKETSPHINX_DIR)/configure $(DEFAULT_ARGS) --srcdir=$(POCKETSPHINX_DIR) --without-python --with-sphinxbase=$(SPHINXBASE_DIR) --with-sphinxbase-build=$(SPHINXBASE_BUILDDIR) CFLAGS=)
+	(cd $(POCKETSPHINX_BUILDDIR) && $(DEFAULT_VARS) $(POCKETSPHINX_DIR)/configure $(DEFAULT_ARGS) --srcdir=$(POCKETSPHINX_DIR) --without-python --with-sphinxbase=$(SPHINXBASE_DIR) --with-sphinxbase-build=$(SPHINXBASE_BUILDDIR) CFLAGS=-Wno-return-type)
 	$(TOUCH_TARGET)
 
 $(POCKETSPHINX_BUILDDIR)/buildstamp: $(POCKETSPHINX_BUILDDIR)/Makefile