diff --git a/pkgs/development/compilers/ghc/8.4.2.nix b/pkgs/development/compilers/ghc/8.4.2.nix
index d793f0b391af..ac8d76c63ed6 100644
--- a/pkgs/development/compilers/ghc/8.4.2.nix
+++ b/pkgs/development/compilers/ghc/8.4.2.nix
@@ -22,7 +22,7 @@
 
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
-  enableShared ? !targetPlatform.isWindows && !targetPlatform.useAndroidPrebuilt
+  enableShared ? !targetPlatform.isWindows && !targetPlatform.useAndroidPrebuilt && !targetPlatform.useiOSPrebuilt
 
 , # Whetherto build terminfo.
   enableTerminfo ? !targetPlatform.isWindows
diff --git a/pkgs/development/compilers/ghc/8.4.3.nix b/pkgs/development/compilers/ghc/8.4.3.nix
index 385c33c22ef8..c57058a63520 100644
--- a/pkgs/development/compilers/ghc/8.4.3.nix
+++ b/pkgs/development/compilers/ghc/8.4.3.nix
@@ -22,7 +22,7 @@
 
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
-  enableShared ? !targetPlatform.isWindows && !targetPlatform.useAndroidPrebuilt
+  enableShared ? !targetPlatform.isWindows && !targetPlatform.useAndroidPrebuilt && !targetPlatform.useiOSPrebuilt
 
 , # Whetherto build terminfo.
   enableTerminfo ? !targetPlatform.isWindows