diff --git a/src/EmptyFiles/FileExtensions.cs b/src/EmptyFiles/FileExtensions.cs
index 32907a0..fa4e849 100644
--- a/src/EmptyFiles/FileExtensions.cs
+++ b/src/EmptyFiles/FileExtensions.cs
@@ -156,6 +156,7 @@ public static void AddTextFileConvention(IsTextFile convention) =>
             ".bdsproj",
             ".bib",
             ".bicep",
+            ".bicepparam",
             ".bowerrc",
             ".c",
             ".cbl",
diff --git a/src/Tests/ExtensionsTests.cs b/src/Tests/ExtensionsTests.cs
index cd55140..0180016 100644
--- a/src/Tests/ExtensionsTests.cs
+++ b/src/Tests/ExtensionsTests.cs
@@ -122,4 +122,17 @@ public void RemoveTextExtension()
         FileExtensions.RemoveTextExtension("ext1");
         False(FileExtensions.IsTextExtension("ext1"));
     }
+
+    [TestCase("bicepparam")]
+    [TestCase("BICEPPARAM")]
+    [TestCase("BicepParam")]
+    public void BicepParametersAreText(string extension)
+    {
+        True(FileExtensions.IsTextExtension(extension));
+        True(FileExtensions.IsTextExtension(extension.AsSpan()));
+        True(FileExtensions.IsTextExtension($".{extension}"));
+        True(FileExtensions.IsTextExtension($".{extension}".AsSpan()));
+        True(FileExtensions.IsTextFile($"main.dev.{extension}"));
+        True(FileExtensions.IsTextFile($"main.dev.{extension}".AsSpan()));
+    }
 }
\ No newline at end of file