diff --git a/arm64-gen.c b/arm64-gen.c
index 5606271c..463541f1 100644
--- a/arm64-gen.c
+++ b/arm64-gen.c
@@ -1775,7 +1775,7 @@ ST_FUNC void gen_cvt_ftoi(int t)
 
 ST_FUNC void gen_cvt_ftof(int t)
 {
-    int f = vtop[0].type.t;
+    int f = vtop[0].type.t & VT_BTYPE;
     assert(t == VT_FLOAT || t == VT_DOUBLE || t == VT_LDOUBLE);
     assert(f == VT_FLOAT || f == VT_DOUBLE || f == VT_LDOUBLE);
     if (t == f)
diff --git a/tests/tests2/22_floating_point.c b/tests/tests2/22_floating_point.c
index e3491f5c..2eb062c3 100644
--- a/tests/tests2/22_floating_point.c
+++ b/tests/tests2/22_floating_point.c
@@ -1,6 +1,19 @@
 #include <stdio.h>
 #include <math.h>
 
+float fd;
+
+int
+test()
+{
+   // was an internal tcc compiler error with arm64 backend until 2019-11-08
+   if (fd < 5.5) {
+     return 1;
+   } else {
+     return 0;
+   }
+}
+
 int main()
 {
    // variables