diff --git a/src/typescript/Scala.tmLanguage.ts b/src/typescript/Scala.tmLanguage.ts
index e7bcc26..f354a10 100644
--- a/src/typescript/Scala.tmLanguage.ts
+++ b/src/typescript/Scala.tmLanguage.ts
@@ -578,21 +578,13 @@ export const scalaTmLanguage: TmLanguage = {
     },
     inline: {
       patterns: [
-        {
-          match: `\\b(inline)\\s+(?=(([\\w\\s]*\\b(val|def|given)\\b)|(${plainid}|${backQuotedId})\\s*:))`,
-          captures: {
-            '1': {
-              name: 'storage.modifier.other'
-            }
-          }
+        { // inline parameters
+          match: `\\b(inline)(?=\\s+(${plainid}|${backQuotedId})\\s*:)`,
+          name: 'storage.modifier.other'
         },
         {
           match: `\\b(inline)\\b(?=(?:.(?!\\b(?:val|def|given)\\b))*\\b(if|match)\\b)`,
-          captures: {
-            '1': {
-              name: 'keyword.control.flow.scala'
-            }
-          }
+          name: 'keyword.control.flow.scala'
         }
       ]
     },
@@ -645,7 +637,7 @@ export const scalaTmLanguage: TmLanguage = {
           }
         },
         {
-          match: `\\b(?:(case|open)\\s+)?(class|object|enum)\\s+([^\\s\\{\\(\\[;]+)(?<![^${opchar}]:)`,
+          match: `\\b(?:(case)\\s+)?(class|object|enum)\\s+([^\\s\\{\\(\\[;]+)(?<![^${opchar}]:)`,
           captures: {
             '1': {
               name: 'keyword.declaration.scala'
@@ -840,7 +832,11 @@ export const scalaTmLanguage: TmLanguage = {
           name: 'storage.modifier.access'
         },
         {
-          match: '\\b(synchronized|@volatile|abstract|final|lazy|sealed|implicit|opaque |override|@transient|@native)\\b',
+          match: '\\b(synchronized|@volatile|abstract|final|lazy|sealed|implicit|override|@transient|@native)\\b',
+          name: 'storage.modifier.other'
+        },
+        {
+          match: '(?<=^|\\s)\\b(transparent|opaque|infix|open|inline)\\b(?=[a-z\\s]*\\b(def|val|var|given|type|class|trait|object|enum)\\b)',
           name: 'storage.modifier.other'
         }
       ]
diff --git a/tests/unit/#155.test.scala b/tests/unit/#155.test.scala
new file mode 100644
index 0000000..6bb5360
--- /dev/null
+++ b/tests/unit/#155.test.scala
@@ -0,0 +1,71 @@
+// SYNTAX TEST "source.scala"
+
+    transparent inline def foo
+//  ^^^^^^^^^^^ storage.modifier.other
+//              ^^^^^^ storage.modifier.other
+
+    transparent inline xdef foo
+//  ^^^^^^^^^^^ - storage.modifier.other
+//              ^^^^^^ - storage.modifier.other
+
+    transparent inline defx foo
+//  ^^^^^^^^^^^ - storage.modifier.other
+//              ^^^^^^ - storage.modifier.other
+
+    transparent inline final def assert
+//  ^^^^^^^^^^^ storage.modifier.other
+//              ^^^^^^ storage.modifier.other
+
+    transparent badkeyword inline override def alternative
+//  ^^^^^^^^^^^ storage.modifier.other
+//                         ^^^^^^ storage.modifier.other
+
+    transparent trait Enum extends Any with Product with Serializable
+//  ^^^^^^^^^^^ storage.modifier.other
+
+    opaque type Logarithm = Double
+//  ^^^^^^ storage.modifier.other
+
+    opaque private type Matching = Option[Tuple]
+//  ^^^^^^ storage.modifier.other
+
+    infix def + (that: Rational) =
+//  ^^^^^ storage.modifier.other
+
+    infix type +[X <: Int | String, Y <: Int | String] = (X, Y) match
+//  ^^^^^ storage.modifier.other
+
+    open class Open
+//  ^^^^ storage.modifier.other
+
+    open final class Foo1
+//  ^^^^ storage.modifier.other
+
+open final class Foo1
+// <---- storage.modifier.other
+
+   @inline def 
+//  ^^^^^^ - storage.modifier.other
+
+   @infix def 
+//  ^^^^^ - storage.modifier.other
+
+   @transparent def 
+//  ^^^^^^^^^^^ - storage.modifier.other
+
+   @opaque def 
+//  ^^^^^^ - storage.modifier.other
+
+   @open def 
+//  ^^^^ - storage.modifier.other
+
+   @scala.inline def 
+//        ^^^^^^ - storage.modifier.other
+
+   @infix inline def
+//  ^^^^^ - storage.modifier.other
+//        ^^^^^^ storage.modifier.other
+
+file.open()
+//   ^^^^ - storage.modifier.other
+
diff --git a/tests/unit/#91.test.scala b/tests/unit/#91.test.scala
index 1c31a69..0df2183 100644
--- a/tests/unit/#91.test.scala
+++ b/tests/unit/#91.test.scala
@@ -1,6 +1,6 @@
 // SYNTAX TEST "source.scala"
 
     open class A
-//  ^^^^ keyword.declaration.scala
+//  ^^^^ storage.modifier.other
 //       ^^^^^ keyword.declaration.scala
 //             ^ entity.name.class.declaration