diff --git a/src/coreclr/vm/interpexec.cpp b/src/coreclr/vm/interpexec.cpp
index 59e5aac882b7f1..f9d553cdc22233 100644
--- a/src/coreclr/vm/interpexec.cpp
+++ b/src/coreclr/vm/interpexec.cpp
@@ -979,7 +979,7 @@ void InterpExecMethod(InterpreterFrame *pInterpreterFrame, InterpMethodContextFr
                     ip += 3;
                     break;
                 case INTOP_CONV_U2_R8:
-                    ConvFpHelper<uint16_t, uint32_t, float>(stack, ip);
+                    ConvFpHelper<uint16_t, uint32_t, double>(stack, ip);
                     ip += 3;
                     break;
                 case INTOP_CONV_I4_R4: