diff --git a/include/llvm-c/Target.h b/include/llvm-c/Target.h
index f5f2bc4d63c..b465b4b88db 100644
--- a/include/llvm-c/Target.h
+++ b/include/llvm-c/Target.h
@@ -41,7 +41,6 @@ enum LLVMByteOrdering { LLVMBigEndian, LLVMLittleEndian };
 
 typedef struct LLVMOpaqueTargetData *LLVMTargetDataRef;
 typedef struct LLVMOpaqueTargetLibraryInfotData *LLVMTargetLibraryInfoRef;
-typedef struct LLVMStructLayout *LLVMStructLayoutRef;
 
 /* Declare all of the target-initialization functions that are available. */
 #define LLVM_TARGET(TargetName) \