diff --git a/infer/src/clang/cTypes_decl.ml b/infer/src/clang/cTypes_decl.ml
index ea7e9d2fa..9add18735 100644
--- a/infer/src/clang/cTypes_decl.ml
+++ b/infer/src/clang/cTypes_decl.ml
@@ -69,7 +69,8 @@ let add_predefined_types tenv =
 let create_csu opt_type =
   match opt_type with
   | `Type s ->
-      (let buf = Str.split (Str.regexp "[ \t]+") s in
+      (let no_slash = Str.global_replace (Str.regexp "/") "_" s in
+       let buf = Str.split (Str.regexp "[ \t]+") no_slash in
        match buf with
        | "struct":: l ->Sil.Struct, General_utils.string_from_list l
        | "class":: l -> Sil.Class, General_utils.string_from_list l
diff --git a/infer/tests/codetoanalyze/c/frontend/nestedoperators/union.c.dot b/infer/tests/codetoanalyze/c/frontend/nestedoperators/union.c.dot
index 35158cbff..7009e551f 100644
--- a/infer/tests/codetoanalyze/c/frontend/nestedoperators/union.c.dot
+++ b/infer/tests/codetoanalyze/c/frontend/nestedoperators/union.c.dot
@@ -1,5 +1,5 @@
 digraph iCFG {
-7 [label="7:  BinaryOperatorStmt: Assign \n   n$3=*&#GB$x:struct (anonymous at infer/tests/codetoanalyze/c/frontend/nestedoperators/union.c:12:1) * [line 27]\n  *n$3.a:int =1 [line 27]\n  REMOVE_TEMPS(n$3); [line 27]\n " shape="box"]
+7 [label="7:  BinaryOperatorStmt: Assign \n   n$3=*&#GB$x:struct (anonymous at infer_tests_codetoanalyze_c_frontend_nestedoperators_union.c:12:1) * [line 27]\n  *n$3.a:int =1 [line 27]\n  REMOVE_TEMPS(n$3); [line 27]\n " shape="box"]
 	
 
 	 7 -> 6 ;
@@ -11,7 +11,7 @@ digraph iCFG {
 	
 
 	 5 -> 4 ;
-4 [label="4:  BinaryOperatorStmt: Assign \n   n$0=*&#GB$x:struct (anonymous at infer/tests/codetoanalyze/c/frontend/nestedoperators/union.c:12:1) * [line 31]\n  n$1=*n$0.b:int  [line 31]\n  *&#GB$y.g.w:int =n$1 [line 31]\n  REMOVE_TEMPS(n$0,n$1); [line 31]\n " shape="box"]
+4 [label="4:  BinaryOperatorStmt: Assign \n   n$0=*&#GB$x:struct (anonymous at infer_tests_codetoanalyze_c_frontend_nestedoperators_union.c:12:1) * [line 31]\n  n$1=*n$0.b:int  [line 31]\n  *&#GB$y.g.w:int =n$1 [line 31]\n  REMOVE_TEMPS(n$0,n$1); [line 31]\n " shape="box"]
 	
 
 	 4 -> 3 ;