diff --git a/build.zig b/build.zig
index 5fa7a23a1a..aec623f642 100644
--- a/build.zig
+++ b/build.zig
@@ -339,7 +339,10 @@ pub fn build(b: *Builder) !void {
             // That means we also have to rely on stage1 compiled c++ files. We parse config.h to find
             // the information passed on to us from cmake.
             if (cfg.cmake_prefix_path.len > 0) {
-                b.addSearchPrefix(cfg.cmake_prefix_path);
+                var it = mem.tokenize(u8, cfg.cmake_prefix_path, ";");
+                while (it.next()) |path| {
+                    b.addSearchPrefix(path);
+                }
             }
 
             try addCmakeCfgOptionsToExe(b, cfg, exe, use_zig_libcxx);