diff --git a/src/c/numbers/minus.d b/src/c/numbers/minus.d
index 17463f782..cf8f8dd2b 100644
--- a/src/c/numbers/minus.d
+++ b/src/c/numbers/minus.d
@@ -167,6 +167,80 @@ ecl_minus(cl_object x, cl_object y)
         cl_object z1 = ecl_minus(x->gencomplex.imag, y->gencomplex.imag);
         return ecl_make_complex(z, z1);
       }
+#ifdef ECL_COMPLEX_FLOAT
+      /* upgraded type csfloat */
+      CASE_CSFLOAT_FIXNUM;
+      CASE_CSFLOAT_BIGNUM;
+      CASE_CSFLOAT_RATIO;
+      CASE_CSFLOAT_SINGLE_FLOAT;
+      CASE_CSFLOAT_COMPLEX;
+
+      CASE_FIXNUM_CSFLOAT;
+      CASE_BIGNUM_CSFLOAT;
+      CASE_RATIO_CSFLOAT;
+      CASE_SINGLE_FLOAT_CSFLOAT;
+      CASE_COMPLEX_CSFLOAT;
+      CASE_CSFLOAT_CSFLOAT {
+        cl_object aux = ecl_alloc_object(t_csfloat);
+        ecl_csfloat(aux) = ecl_to_csfloat(x) - ecl_to_csfloat(y);
+        return aux;
+      }
+      /* upgraded type cdfloat */
+      CASE_CSFLOAT_DOUBLE_FLOAT;
+      CASE_DOUBLE_FLOAT_CSFLOAT;
+
+      CASE_CDFLOAT_FIXNUM;
+      CASE_CDFLOAT_BIGNUM;
+      CASE_CDFLOAT_RATIO;
+      CASE_CDFLOAT_SINGLE_FLOAT;
+      CASE_CDFLOAT_DOUBLE_FLOAT;
+      CASE_CDFLOAT_COMPLEX;
+      CASE_CDFLOAT_CSFLOAT;
+
+      CASE_FIXNUM_CDFLOAT;
+      CASE_BIGNUM_CDFLOAT;
+      CASE_RATIO_CDFLOAT;
+      CASE_SINGLE_FLOAT_CDFLOAT;
+      CASE_DOUBLE_FLOAT_CDFLOAT;
+      CASE_COMPLEX_CDFLOAT;
+      CASE_CSFLOAT_CDFLOAT;
+      CASE_CDFLOAT_CDFLOAT {
+        cl_object aux = ecl_alloc_object(t_cdfloat);
+        ecl_cdfloat(aux) = ecl_to_cdfloat(x) - ecl_to_cdfloat(y);
+        return aux;
+      }
+      /* upgraded type clfloat */
+      CASE_CSFLOAT_LONG_FLOAT;
+      CASE_LONG_FLOAT_CSFLOAT;
+      CASE_CDFLOAT_LONG_FLOAT;
+      CASE_LONG_FLOAT_CDFLOAT;
+
+      CASE_CLFLOAT_FIXNUM;
+      CASE_CLFLOAT_BIGNUM;
+      CASE_CLFLOAT_RATIO;
+      CASE_CLFLOAT_SINGLE_FLOAT;
+      CASE_CLFLOAT_DOUBLE_FLOAT;
+      CASE_CLFLOAT_LONG_FLOAT;
+      CASE_CLFLOAT_COMPLEX;
+      CASE_CLFLOAT_CSFLOAT;
+      CASE_CLFLOAT_CDFLOAT;
+
+      CASE_FIXNUM_CLFLOAT;
+      CASE_BIGNUM_CLFLOAT;
+      CASE_RATIO_CLFLOAT;
+      CASE_SINGLE_FLOAT_CLFLOAT;
+      CASE_DOUBLE_FLOAT_CLFLOAT;
+      CASE_LONG_FLOAT_CLFLOAT;
+      CASE_COMPLEX_CLFLOAT;
+      CASE_CSFLOAT_CLFLOAT;
+      CASE_CDFLOAT_CLFLOAT;
+      CASE_CLFLOAT_CLFLOAT
+      {
+        cl_object aux = ecl_alloc_object(t_clfloat);
+        ecl_clfloat(aux) = ecl_to_clfloat(x) - ecl_to_clfloat(y);
+        return aux;
+      }
+#endif
       CASE_UNKNOWN(@[-],x,y,@[number]);
     }
   MATH_DISPATCH2_END;