diff --git a/tools/grammarcheckers/tests/Makefile.am b/tools/grammarcheckers/tests/Makefile.am
index 5be518e2..f871aa85 100644
--- a/tools/grammarcheckers/tests/Makefile.am
+++ b/tools/grammarcheckers/tests/Makefile.am
@@ -43,7 +43,27 @@ XFAIL_TESTS=\
 	real-vaere-bli.yaml \
 	syn-adv-v3-v2.yaml \
 	syn-embedded-v2-v3.yaml \
-	syn-pp-v3-v2.yaml
+	syn-pp-v3-v2.yaml            \
+	msyn-agr-adjmsc-adjneu.yaml  \
+	msyn-agr-adjneu-adjmsc.yaml  \
+	msyn-agr-detmsc-detneu.yaml  \
+	msyn-pred-adjmsc-adjneu.yaml \
+	msyn-pred-adjneu-adjmsc.yaml \
+	msyn-pron-nom-acc.yaml       \
+	msyn-qucompl-def-indef.yaml  \
+	msyn-v-inf-pres.yaml         \
+	msyn-v-pres-inf.yaml         \
+	neg-aa-og.yaml               \
+	neg-agr-adjmsc-adjneu.yaml   \
+	neg-agr-adjneu-adjmsc.yaml   \
+	neg-agr-detneu-detfem.yaml   \
+	neg-og-aa.yaml               \
+	neg-pred-adjmsc-adjneu.yaml  \
+	neg-pron-nom-acc.yaml        \
+	neg-v-inf-pres.yaml          \
+	neg-v-pres-inf.yaml          \
+	real-aa-og.yaml              \
+	real-og-aa.yaml
 
 endif # WANT_GRAMCHECK