diff --git a/tests/regression/misc/bugs-1.cir b/tests/regression/misc/bugs-1.cir
index b41dbf97a..1f58dbd3f 100644
--- a/tests/regression/misc/bugs-1.cir
+++ b/tests/regression/misc/bugs-1.cir
@@ -19,7 +19,7 @@ b1003_t  n1003_t 0  V='aux1003**2'
 v1003_g  n1003_g 0  4
 
 b1004_t  n1004_t 0  V='-aux1003**2'
-v1004_g  n1004_g 0  4
+v1004_g  n1004_g 0  -4
 
 * unary '+'