diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index c2445748c2f..cd987c88f56 100644
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -490,7 +490,7 @@ const char *LLVMGetDataLayout(LLVMModuleRef M);
  *
  * @see Module::setDataLayout()
  */
-void LLVMSetDataLayout(LLVMModuleRef M, const char *Triple);
+void LLVMSetDataLayout(LLVMModuleRef M, const char *DataLayoutStr);
 
 /**
  * Obtain the target triple for a module.
diff --git a/lib/IR/Core.cpp b/lib/IR/Core.cpp
index d3abe0b9262..b423716f3ac 100644
--- a/lib/IR/Core.cpp
+++ b/lib/IR/Core.cpp
@@ -164,8 +164,8 @@ const char * LLVMGetDataLayout(LLVMModuleRef M) {
   return unwrap(M)->getDataLayoutStr().c_str();
 }
 
-void LLVMSetDataLayout(LLVMModuleRef M, const char *Triple) {
-  unwrap(M)->setDataLayout(Triple);
+void LLVMSetDataLayout(LLVMModuleRef M, const char *DataLayoutStr) {
+  unwrap(M)->setDataLayout(DataLayoutStr);
 }
 
 /*--.. Target triple .......................................................--*/