diff --git a/lua/neotest-busted/init.lua b/lua/neotest-busted/init.lua
index bedb228..37302d1 100644
--- a/lua/neotest-busted/init.lua
+++ b/lua/neotest-busted/init.lua
@@ -129,8 +129,7 @@ end
 ---@return string
 local function escape_test_pattern_filter(filter)
     -- NOTE: The replacement of a literal '%' needs to come first so it does
-    -- match any earlier replacements that insert a '%'. Also we need to escape
-    -- '$' for the shell command to work
+    -- match any earlier replacements that insert a '%'.
     return (
         filter
             :gsub("%%", "%%%%")
@@ -141,7 +140,7 @@ local function escape_test_pattern_filter(filter)
             :gsub("%+", "%%+")
             :gsub("%-", "%%-")
             :gsub("%?", "%%?")
-            :gsub("%$", "%%\\$")
+            :gsub("%$", "%%$")
             :gsub("%^", "%%^")
     )
 end
diff --git a/tests/adapter_build_spec_spec.lua b/tests/adapter_build_spec_spec.lua
index 29c6157..8643f53 100644
--- a/tests/adapter_build_spec_spec.lua
+++ b/tests/adapter_build_spec_spec.lua
@@ -235,7 +235,7 @@ describe("adapter.build_spec", function()
             "test-output.json",
             "--verbose",
             "--filter",
-            [[%^top%-le%[ve]l %(na%*m%+e%-sp%?ac%%e%) 2%\$ test 3]],
+            [[%^top%-le%[ve]l %(na%*m%+e%-sp%?ac%%e%) 2%$ test 3]],
             "./test_files/test1_spec.lua",
         })