diff --git a/velox/expression/fuzzer/ExpressionFuzzer.cpp b/velox/expression/fuzzer/ExpressionFuzzer.cpp
index fae7b0902036..680998ce3083 100644
--- a/velox/expression/fuzzer/ExpressionFuzzer.cpp
+++ b/velox/expression/fuzzer/ExpressionFuzzer.cpp
@@ -125,6 +125,12 @@ void addCastFromDateSignature(
   signatures.push_back(makeCastSignature("date", toType));
 }
 
+void addCastFromIPPrefixSignature(
+    const std::string& toType,
+    std::vector<facebook::velox::exec::FunctionSignaturePtr>& signatures) {
+  signatures.push_back(makeCastSignature("ipprefix", toType));
+}
+
 std::vector<facebook::velox::exec::FunctionSignaturePtr>
 getSignaturesForCast() {
   std::vector<facebook::velox::exec::FunctionSignaturePtr> signatures;
@@ -149,6 +155,7 @@ getSignaturesForCast() {
   addCastFromVarcharSignature("varchar", signatures);
   addCastFromDateSignature("varchar", signatures);
   addCastFromTimestampSignature("varchar", signatures);
+  addCastFromIPPrefixSignature("varchar", signatures);
 
   // To timestamp type.
   addCastFromVarcharSignature("timestamp", signatures);
@@ -158,6 +165,9 @@ getSignaturesForCast() {
   addCastFromVarcharSignature("date", signatures);
   addCastFromTimestampSignature("date", signatures);
 
+  // To ipprefix type.
+  addCastFromVarcharSignature("ipprefix", signatures);
+
   // For each supported translation pair T --> U, add signatures of array(T) -->
   // array(U), map(varchar, T) --> map(varchar, U), row(T) --> row(U).
   auto size = signatures.size();
@@ -664,6 +674,7 @@ bool ExpressionFuzzer::isSupportedSignature(
   if (usesTypeName(signature, "opaque") ||
       usesTypeName(signature, "timestamp with time zone") ||
       usesTypeName(signature, "interval day to second") ||
+      usesTypeName(signature, "ipprefix") ||
       (!options_.enableDecimalType && usesTypeName(signature, "decimal")) ||
       (!options_.enableComplexTypes && useComplexType) ||
       (options_.enableComplexTypes && usesTypeName(signature, "unknown"))) {