diff --git a/clang-tools-extra/clangd/refactor/tweaks/PopulateSwitch.cpp b/clang-tools-extra/clangd/refactor/tweaks/PopulateSwitch.cpp
--- a/clang-tools-extra/clangd/refactor/tweaks/PopulateSwitch.cpp
+++ b/clang-tools-extra/clangd/refactor/tweaks/PopulateSwitch.cpp
@@ -22,7 +22,9 @@
 //   void f(Color color) {
 //     switch (color) {
 //     case RED:
+//       break;
 //     case GREEN:
+//       break;
 //     case BLUE:
 //       break;
 //     }
@@ -203,11 +205,10 @@
     Text.append({"case ", getQualification(DeclASTCtx, DeclCtx, Loc, EnumD)});
     if (EnumD->isScoped())
       Text.append({EnumD->getName(), "::"});
-    Text.append({EnumConstant.second.getEnumConstant()->getName(), ":"});
+    Text.append({EnumConstant.second.getEnumConstant()->getName(), ":break;"});
   }
 
   assert(!Text.empty() && "No enumerators to insert!");
-  Text += "break;";
 
   const SourceManager &SM = Ctx.getSourceManager();
   return Effect::mainFileEdit(
diff --git a/clang-tools-extra/clangd/unittests/tweaks/PopulateSwitchTests.cpp b/clang-tools-extra/clangd/unittests/tweaks/PopulateSwitchTests.cpp
--- a/clang-tools-extra/clangd/unittests/tweaks/PopulateSwitchTests.cpp
+++ b/clang-tools-extra/clangd/unittests/tweaks/PopulateSwitchTests.cpp
@@ -123,7 +123,7 @@
           )"",
           R""(
             enum class Enum {A,B};
-            switch (Enum::A) {case Enum::A:case Enum::B:break;}
+            switch (Enum::A) {case Enum::A:break;case Enum::B:break;}
           )"",
       },
       {
@@ -135,7 +135,7 @@
           )"",
           R""(
             enum Enum {A,B,C};
-            switch (A) {case B:break;case A:case C:break;}
+            switch (A) {case B:break;case A:break;case C:break;}
           )"",
       },
       {
@@ -148,7 +148,7 @@
           )"",
           R""(
             enum Enum {A,B=1,C};
-            switch (A) {case 1:break;case A:case C:break;}
+            switch (A) {case 1:break;case A:break;case C:break;}
           )"",
       },
       {
@@ -162,7 +162,7 @@
           R""(
             enum class Enum {A,B,C};
             switch (Enum::A)
-            {case Enum::B:break;case Enum::A:case Enum::C:break;}
+            {case Enum::B:break;case Enum::A:break;case Enum::C:break;}
           )"",
       },
       {
@@ -193,12 +193,12 @@
           // Duplicated constant names
           Function,
           R""(enum Enum {A,B,b=B}; ^switch (A) {})"",
-          R""(enum Enum {A,B,b=B}; switch (A) {case A:case B:break;})"",
+          R""(enum Enum {A,B,b=B}; switch (A) {case A:break;case B:break;})"",
       },
       {
           // Duplicated constant names all in switch
           Function,
-          R""(enum Enum {A,B,b=B}; ^switch (A) {case A:case B:break;})"",
+          R""(enum Enum {A,B,b=B}; ^switch (A) {case A:break;case B:break;})"",
           "unavailable",
       },
       {
@@ -217,7 +217,7 @@
        R""(
             enum CEnum {A,B,C};
             enum CEnum val = A;
-            switch (val) {case B:break;case A:case C:break;}
+            switch (val) {case B:break;case A:break;case C:break;}
           )"",
        "TestTU.c"},
       {// C: Only filling in missing enumerators w/ typedefs
@@ -236,7 +236,7 @@
             typedef enum ControlState ControlState;
             enum ControlState : UInteger {A,B,C};
             ControlState controlState = A;
-            switch (controlState) {case A:break;case B:case C:break;}
+            switch (controlState) {case A:break;case B:break;case C:break;}
           )"",
        "TestTU.c"},
   };