diff --git a/src/V3DfgPeephole.cpp b/src/V3DfgPeephole.cpp
index 1e21ea675..b88c726b3 100644
--- a/src/V3DfgPeephole.cpp
+++ b/src/V3DfgPeephole.cpp
@@ -111,7 +111,7 @@ template <> void foldOp<DfgLogOr>      (V3Number& out, const V3Number& lhs, cons
 template <> void foldOp<DfgLt>         (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opLt(lhs, rhs); }
 template <> void foldOp<DfgLtS>        (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opLtS(lhs, rhs); }
 template <> void foldOp<DfgLte>        (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opLte(lhs, rhs); }
-template <> void foldOp<DfgLteS>       (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opLtS(lhs, rhs); }
+template <> void foldOp<DfgLteS>       (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opLteS(lhs, rhs); }
 template <> void foldOp<DfgModDiv>     (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opModDiv(lhs, rhs); }
 template <> void foldOp<DfgModDivS>    (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opModDivS(lhs, rhs); }
 template <> void foldOp<DfgMul>        (V3Number& out, const V3Number& lhs, const V3Number& rhs) { out.opMul(lhs, rhs); }
diff --git a/test_regress/t/t_dfg_peephole.v b/test_regress/t/t_dfg_peephole.v
index a453cc51a..ae91ea574 100644
--- a/test_regress/t/t_dfg_peephole.v
+++ b/test_regress/t/t_dfg_peephole.v
@@ -66,9 +66,13 @@ module t (
    `signal(FOLD_BINARY_LogIf,     const_a[0] -> const_b[0]);
    `signal(FOLD_BINARY_LogOr,     const_a[0] || const_b[0]);
    `signal(FOLD_BINARY_Lt,        const_a < const_b);
+   `signal(FOLD_BINARY_Lt2,       const_a < const_a);
    `signal(FOLD_BINARY_LtS,       sconst_a < sconst_b);
+   `signal(FOLD_BINARY_LtS2,      sconst_a < sconst_a);
    `signal(FOLD_BINARY_Lte,       const_a <= const_b);
+   `signal(FOLD_BINARY_Lte2,      const_a <= const_a);
    `signal(FOLD_BINARY_LteS,      sconst_a <= sconst_b);
+   `signal(FOLD_BINARY_LteS2,     sconst_a <= sconst_a);
    `signal(FOLD_BINARY_ModDiv,    const_a % 64'd3);
    `signal(FOLD_BINARY_ModDivS,   sconst_a % 64'sd3);
    `signal(FOLD_BINARY_Mul,       const_a * 64'd3);