diff --git a/pkgs/tools/networking/curl/default.nix b/pkgs/tools/networking/curl/default.nix
index 879f8e2e38f1..e961fa152f78 100644
--- a/pkgs/tools/networking/curl/default.nix
+++ b/pkgs/tools/networking/curl/default.nix
@@ -171,9 +171,9 @@ stdenv.mkDerivation rec {
   '' + lib.optionalString scpSupport ''
     sed '/^dependency_libs/s|${lib.getDev libssh2}|${lib.getLib libssh2}|' -i "$out"/lib/*.la
   '' + lib.optionalString gnutlsSupport ''
-    ln $out/lib/libcurl.so $out/lib/libcurl-gnutls.so
-    ln $out/lib/libcurl.so $out/lib/libcurl-gnutls.so.4
-    ln $out/lib/libcurl.so $out/lib/libcurl-gnutls.so.4.4.0
+    ln $out/lib/libcurl${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/libcurl-gnutls${stdenv.hostPlatform.extensions.sharedLibrary}
+    ln $out/lib/libcurl${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/libcurl-gnutls${stdenv.hostPlatform.extensions.sharedLibrary}.4
+    ln $out/lib/libcurl${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/libcurl-gnutls${stdenv.hostPlatform.extensions.sharedLibrary}.4.4.0
   '';
 
   passthru = {