diff --git a/pkgs/development/compilers/ghc/8.4.3.nix b/pkgs/development/compilers/ghc/8.4.3.nix
index 0f5a43d57eda..853926a430a8 100644
--- a/pkgs/development/compilers/ghc/8.4.3.nix
+++ b/pkgs/development/compilers/ghc/8.4.3.nix
@@ -124,6 +124,14 @@ stdenv.mkDerivation (rec {
     export NIX_LDFLAGS+=" -no_dtrace_dof"
   '' + stdenv.lib.optionalString targetPlatform.useAndroidPrebuilt ''
     sed -i -e '5i ,("armv7a-unknown-linux-androideabi", ("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", "cortex-a8", ""))' llvm-targets
+  '' + stdenv.lib.optionalString targetPlatform.isMusl ''
+      echo "patching llvm-targets for musl targets...."
+      echo "Cloning these existing '*-linux-gnu*' targets:"
+      grep linux-gnu llvm-targets | sed 's/^/  /'
+      echo "go go gadget sed"
+      sed -i 's,\(^.*linux-\)gnu\(.*\)$,\0\n\1musl\2,' llvm-targets
+      echo "llvm-targets now contains these '*-linux-musl*' targets:"
+      grep linux-musl llvm-targets | sed 's/^/  /'
   '';
 
   # TODO(@Ericson2314): Always pass "--target" and always prefix.
diff --git a/pkgs/development/compilers/ghc/8.6.1.nix b/pkgs/development/compilers/ghc/8.6.1.nix
index 89dcec348433..1fd53f2544a1 100644
--- a/pkgs/development/compilers/ghc/8.6.1.nix
+++ b/pkgs/development/compilers/ghc/8.6.1.nix
@@ -116,6 +116,14 @@ stdenv.mkDerivation (rec {
     export NIX_LDFLAGS+=" -no_dtrace_dof"
   '' + stdenv.lib.optionalString targetPlatform.useAndroidPrebuilt ''
     sed -i -e '5i ,("armv7a-unknown-linux-androideabi", ("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", "cortex-a8", ""))' llvm-targets
+  '' + stdenv.lib.optionalString targetPlatform.isMusl ''
+      echo "patching llvm-targets for musl targets...."
+      echo "Cloning these existing '*-linux-gnu*' targets:"
+      grep linux-gnu llvm-targets | sed 's/^/  /'
+      echo "go go gadget sed"
+      sed -i 's,\(^.*linux-\)gnu\(.*\)$,\0\n\1musl\2,' llvm-targets
+      echo "llvm-targets now contains these '*-linux-musl*' targets:"
+      grep linux-musl llvm-targets | sed 's/^/  /'
   '';
 
   # TODO(@Ericson2314): Always pass "--target" and always prefix.