diff --git a/compiler/noirc_evaluator/src/ssa/opt/constant_folding.rs b/compiler/noirc_evaluator/src/ssa/opt/constant_folding.rs
index e414ce8f430..39bda435842 100644
--- a/compiler/noirc_evaluator/src/ssa/opt/constant_folding.rs
+++ b/compiler/noirc_evaluator/src/ssa/opt/constant_folding.rs
@@ -1187,7 +1187,7 @@ mod test {
                 v2 = lt u32 1000, v0
                 jmpif v2 then: b1, else: b2
               b1():
-                v4 = add v0, u32 1
+                v4 = shl v0, u32 1
                 v5 = lt v0, v4
                 constrain v5 == u1 1
                 jmp b2()
@@ -1195,7 +1195,7 @@ mod test {
                 v7 = lt u32 1000, v0
                 jmpif v7 then: b3, else: b4
               b3():
-                v8 = add v0, u32 1
+                v8 = shl v0, u32 1
                 v9 = lt v0, v8
                 constrain v9 == u1 1
                 jmp b4()
@@ -1213,10 +1213,10 @@ mod test {
             brillig(inline) fn main f0 {
               b0(v0: u32):
                 v2 = lt u32 1000, v0
-                v4 = add v0, u32 1
+                v4 = shl v0, u32 1
                 jmpif v2 then: b1, else: b2
               b1():
-                v5 = add v0, u32 1
+                v5 = shl v0, u32 1
                 v6 = lt v0, v5
                 constrain v6 == u1 1
                 jmp b2()