diff --git a/cortex-ar/Cargo.toml b/cortex-ar/Cargo.toml
index 8b4a327..6a43cd2 100644
--- a/cortex-ar/Cargo.toml
+++ b/cortex-ar/Cargo.toml
@@ -14,7 +14,6 @@ keywords = [
     "cortex-a",
     "cortex-r",
     "embedded",
-    "no_std",
     "no-std",
 ]
 license = "MIT OR Apache-2.0"
diff --git a/cortex-r-rt/Cargo.toml b/cortex-r-rt/Cargo.toml
index 91f8189..2e2dc37 100644
--- a/cortex-r-rt/Cargo.toml
+++ b/cortex-r-rt/Cargo.toml
@@ -13,7 +13,6 @@ keywords = [
     "arm",
     "cortex-r",
     "embedded",
-    "no_std",
     "no-std",
     "run-time",
 ]