diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppFileTypes.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppFileTypes.java
index 7123014..0e0b319 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppFileTypes.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppFileTypes.java
@@ -172,7 +172,8 @@
   public static final FileType SHARED_LIBRARY = FileType.of(".so", ".dylib", ".dll");
   // Unix shared libraries can be passed to linker, but not .dll on Windows
   public static final FileType UNIX_SHARED_LIBRARY = FileType.of(".so", ".dylib");
-  public static final FileType INTERFACE_SHARED_LIBRARY = FileType.of(".ifso", ".tbd", ".lib");
+  public static final FileType INTERFACE_SHARED_LIBRARY =
+      FileType.of(".ifso", ".tbd", ".lib", ".dll.a");
   public static final FileType LINKER_SCRIPT = FileType.of(".ld", ".lds", ".ldscript");
 
   // Windows DEF file: https://msdn.microsoft.com/en-us/library/28d6s79h.aspx
diff --git a/src/test/java/com/google/devtools/build/lib/rules/cpp/StarlarkCcCommonTest.java b/src/test/java/com/google/devtools/build/lib/rules/cpp/StarlarkCcCommonTest.java
index a535041..4c9cf78 100644
--- a/src/test/java/com/google/devtools/build/lib/rules/cpp/StarlarkCcCommonTest.java
+++ b/src/test/java/com/google/devtools/build/lib/rules/cpp/StarlarkCcCommonTest.java
@@ -5261,7 +5261,8 @@
         .contains("'a.lib' does not have any of the allowed extensions .so, .dylib or .dll");
     assertThat(e)
         .hasMessageThat()
-        .contains("'a.dll' does not have any of the allowed extensions .ifso, .tbd or .lib");
+        .contains(
+            "'a.dll' does not have any of the allowed extensions .ifso, .tbd, .lib or .dll.a");
   }
 
   @Test