diff --git a/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/FunctionPrototype.java b/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/FunctionPrototype.java
index 31b80daffb..a4892023b5 100644
--- a/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/FunctionPrototype.java
+++ b/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/FunctionPrototype.java
@@ -88,7 +88,7 @@ public class FunctionPrototype {
 	 */
 	public FunctionPrototype(FunctionSignature proto, CompilerSpec cspec,
 			boolean voidimpliesdotdotdot) {
-		modelname = proto.getName();
+		modelname = proto.getCallingConventionName();
 		PrototypeModel model = cspec.matchConvention(modelname);
 		localsyms = null;
 		injectname = null;