diff --git a/src-self-hosted/translate_c.zig b/src-self-hosted/translate_c.zig
index 29bcddc5f..3b1a91b28 100644
--- a/src-self-hosted/translate_c.zig
+++ b/src-self-hosted/translate_c.zig
@@ -2625,6 +2625,9 @@ fn transSwitch(
         const else_prong = try transCreateNodeSwitchCase(rp.c, try transCreateNodeSwitchElse(rp.c));
         else_prong.expr = &(try transCreateNodeBreak(rp.c, "__switch")).base;
         _ = try appendToken(rp.c, .Comma, ",");
+
+        if (switch_scope.case_index >= switch_scope.cases.len)
+            return revertAndWarn(rp, error.UnsupportedTranslation, ZigClangStmt_getBeginLoc(@ptrCast(*const ZigClangStmt, stmt)), "TODO complex switch cases", .{});
         switch_scope.cases[switch_scope.case_index] = &else_prong.base;
         switch_scope.case_index += 1;
     }
@@ -2666,6 +2669,9 @@ fn transCase(
     const switch_prong = try transCreateNodeSwitchCase(rp.c, expr);
     switch_prong.expr = &(try transCreateNodeBreak(rp.c, label)).base;
     _ = try appendToken(rp.c, .Comma, ",");
+
+    if (switch_scope.case_index >= switch_scope.cases.len)
+        return revertAndWarn(rp, error.UnsupportedTranslation, ZigClangStmt_getBeginLoc(@ptrCast(*const ZigClangStmt, stmt)), "TODO complex switch cases", .{});
     switch_scope.cases[switch_scope.case_index] = &switch_prong.base;
     switch_scope.case_index += 1;
 
@@ -2699,6 +2705,9 @@ fn transDefault(
     const else_prong = try transCreateNodeSwitchCase(rp.c, try transCreateNodeSwitchElse(rp.c));
     else_prong.expr = &(try transCreateNodeBreak(rp.c, label)).base;
     _ = try appendToken(rp.c, .Comma, ",");
+
+    if (switch_scope.case_index >= switch_scope.cases.len)
+        return revertAndWarn(rp, error.UnsupportedTranslation, ZigClangStmt_getBeginLoc(@ptrCast(*const ZigClangStmt, stmt)), "TODO complex switch cases", .{});
     switch_scope.cases[switch_scope.case_index] = &else_prong.base;
     switch_scope.case_index += 1;
 
diff --git a/test/translate_c.zig b/test/translate_c.zig
index da97bc7cd..1c23afdb3 100644
--- a/test/translate_c.zig
+++ b/test/translate_c.zig
@@ -3,6 +3,21 @@ const std = @import("std");
 const CrossTarget = std.zig.CrossTarget;
 
 pub fn addCases(cases: *tests.TranslateCContext) void {
+    cases.add("complex switch",
+        \\int main() {
+        \\    int i = 2;
+        \\    switch (i) {
+        \\        case 0: {
+        \\            case 2:{
+        \\                i += 2;}
+        \\            i += 1;
+        \\        }
+        \\    }
+        \\}
+    , &[_][]const u8{ // TODO properly translate this
+        \\pub const main = @compileError("unable to translate function");
+    });
+
     cases.add("correct semicolon after infixop",
         \\#define __ferror_unlocked_body(_fp) (((_fp)->_flags & _IO_ERR_SEEN) != 0)
     , &[_][]const u8{