diff --git a/Makefile.am b/Makefile.am
index 410ee68..214334d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -27,6 +27,7 @@ EXTRA_DIST = $(SOURCES) $(NOCOMP_SOURCES)
 
 CLEANFILES = $(GOBJECTS)
 
+GUILE_WARNINGS = -Wunbound-variable -Warity-mismatch -Wformat
 SUFFIXES = .scm .go
 .scm.go:
-	$(top_builddir)/env $(GUILE_TOOLS) compile -o "$@" "$<"
+	$(top_builddir)/env $(GUILE_TOOLS) compile $(GUILE_WARNINGS) -o "$@" "$<"