diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
index ec04bf7d054..75bd8880b34 100644
--- a/compiler/rustc_session/src/config.rs
+++ b/compiler/rustc_session/src/config.rs
@@ -822,9 +822,6 @@ pub fn default_configuration(sess: &Session) -> CrateConfig {
         }
     }
     ret.insert((sym::target_arch, Some(Symbol::intern(arch))));
-    if sess.target.is_like_wasm {
-        ret.insert((sym::wasm, None));
-    }
     ret.insert((sym::target_endian, Some(Symbol::intern(end.as_str()))));
     ret.insert((sym::target_pointer_width, Some(Symbol::intern(&wordsz))));
     ret.insert((sym::target_env, Some(Symbol::intern(env))));
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 54fea551594..03fe5bcd297 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -1295,7 +1295,6 @@ symbols! {
         vreg,
         vreg_low16,
         warn,
-        wasm,
         wasm_import_module,
         wasm_target_feature,
         while_let,
diff --git a/src/librustdoc/clean/cfg.rs b/src/librustdoc/clean/cfg.rs
index e93803e2761..592aefb6a4b 100644
--- a/src/librustdoc/clean/cfg.rs
+++ b/src/librustdoc/clean/cfg.rs
@@ -487,7 +487,6 @@ impl<'a> fmt::Display for Display<'a> {
                         "windows" => "Windows",
                         _ => "",
                     },
-                    (sym::wasm, None) => "WebAssembly",
                     (sym::target_arch, Some(arch)) => match &*arch.as_str() {
                         "aarch64" => "AArch64",
                         "arm" => "ARM",