diff --git a/paddle/phi/ops/compat/conv3d_sig.cc b/paddle/phi/ops/compat/conv3d_sig.cc
index 49f31288d00f679ea7dc47a97bc08c1cd3313f4f..68bd54609cb0377bc38c2c987864d46af82d8ba1 100644
--- a/paddle/phi/ops/compat/conv3d_sig.cc
+++ b/paddle/phi/ops/compat/conv3d_sig.cc
@@ -32,7 +32,7 @@ KernelSignature Conv3dOpArgumentMapping(const ArgumentMappingContext& ctx) {
 }
 
 KernelSignature Conv3dGradOpArgumentMapping(const ArgumentMappingContext& ctx) {
-  return KernelSignature("conv2d_grad",
+  return KernelSignature("conv3d_grad",
                          {"Input", "Filter", "Output@GRAD"},
                          {"strides",
                           "paddings",