diff --git a/pkgs/development/compilers/llvm/11/llvm/default.nix b/pkgs/development/compilers/llvm/11/llvm/default.nix
index 941a85e6ad0d..192cacd6510c 100644
--- a/pkgs/development/compilers/llvm/11/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/11/llvm/default.nix
@@ -177,7 +177,7 @@ in stdenv.mkDerivation (rec {
     cp NATIVE/bin/llvm-config $dev/bin/llvm-config-native
   '';
 
-  doCheck = stdenv.isLinux && (!stdenv.isx86_32) && (!stdenv.hostPlatform.isMusl);
+  doCheck = stdenv.isLinux && (!stdenv.isx86_32) && (!stdenv.hostPlatform.isMusl) && (!stdenv.hostPlatform.isRiscV);
 
   checkTarget = "check-all";
 
diff --git a/pkgs/development/compilers/llvm/9/llvm/default.nix b/pkgs/development/compilers/llvm/9/llvm/default.nix
index cf064b75b3f5..e763d3e1e7d0 100644
--- a/pkgs/development/compilers/llvm/9/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/9/llvm/default.nix
@@ -177,7 +177,7 @@ in stdenv.mkDerivation (rec {
     cp NATIVE/bin/llvm-config $dev/bin/llvm-config-native
   '';
 
-  doCheck = stdenv.isLinux && (!stdenv.isx86_32);
+  doCheck = stdenv.isLinux && (!stdenv.isx86_32) && (!stdenv.hostPlatform.isRiscV);
 
   checkTarget = "check-all";