diff --git a/srcpkgs/boswars/template b/srcpkgs/boswars/template
index 67b2bfad8c..598d5e8b84 100644
--- a/srcpkgs/boswars/template
+++ b/srcpkgs/boswars/template
@@ -16,7 +16,7 @@ nocross=yes
 do_build() {
 	# Patch make.py to respect our $CXXFLAGS and $LDFLAGS
 	sed -i make.py \
-		-e "s;^gccflags = '\(.*\)'.split();gccflags = '${CXXFLAGS}\1'.split();" \
+		-e "s;^gccflags = '\(.*\)'.split();gccflags = '${CXXFLAGS} \1'.split();" \
 		-e "/^gccflags.*/a gldflags = '${LDFLAGS}'.split()" \
 		-e "s;self.ldflags = list(ldflags);self.ldflags = gldflags + list(ldflags);"
 	python make.py