diff --git a/pkgs/development/interpreters/spidermonkey/68.nix b/pkgs/development/interpreters/spidermonkey/68.nix
index 5cfb2de919f1..a71805f50563 100644
--- a/pkgs/development/interpreters/spidermonkey/68.nix
+++ b/pkgs/development/interpreters/spidermonkey/68.nix
@@ -78,6 +78,8 @@ in stdenv.mkDerivation rec {
     "--target=${stdenv.hostPlatform.config}"
   ];
 
+  # mkDerivation by default appends --build/--host to configureFlags when cross compiling
+  # These defaults are bogus for Spidermonkey - avoid passing them by providing an empty list
   configurePlatforms = [];
 
   depsBuildBuild = [ buildPackages.stdenv.cc ];
diff --git a/pkgs/development/interpreters/spidermonkey/78.nix b/pkgs/development/interpreters/spidermonkey/78.nix
index cd745c5ba9e0..b4ed171eb78c 100644
--- a/pkgs/development/interpreters/spidermonkey/78.nix
+++ b/pkgs/development/interpreters/spidermonkey/78.nix
@@ -92,6 +92,8 @@ stdenv.mkDerivation rec {
     "--target=${stdenv.hostPlatform.config}"
   ];
 
+  # mkDerivation by default appends --build/--host to configureFlags when cross compiling
+  # These defaults are bogus for Spidermonkey - avoid passing them by providing an empty list
   configurePlatforms = [ ];
 
   depsBuildBuild = [ buildPackages.stdenv.cc ];
diff --git a/pkgs/development/interpreters/spidermonkey/91.nix b/pkgs/development/interpreters/spidermonkey/91.nix
index a8927e79f9a4..57e62e319d11 100644
--- a/pkgs/development/interpreters/spidermonkey/91.nix
+++ b/pkgs/development/interpreters/spidermonkey/91.nix
@@ -88,6 +88,10 @@ stdenv.mkDerivation rec {
     "--target=${stdenv.hostPlatform.config}"
   ];
 
+  # mkDerivation by default appends --build/--host to configureFlags when cross compiling
+  # These defaults are bogus for Spidermonkey - avoid passing them by providing an empty list
+  configurePlatforms = [ ];
+
   depsBuildBuild = [ buildPackages.stdenv.cc ];
 
   # Remove unnecessary static lib