diff --git a/src/highlighters.cc b/src/highlighters.cc
index 1ef9dfaf..5708801d 100644
--- a/src/highlighters.cc
+++ b/src/highlighters.cc
@@ -193,12 +193,6 @@ private:
     ValueId m_id;
 };
 
-static bool overlaps(const BufferRange& lhs, const BufferRange& rhs)
-{
-    return lhs.begin < rhs.begin ? lhs.end > rhs.begin
-                                 : rhs.end > lhs.begin;
-}
-
 using FacesSpec = Vector<std::pair<size_t, String>, MemoryDomain::Highlight>;
 
 class RegexHighlighter : public Highlighter
@@ -212,6 +206,11 @@ public:
 
     void highlight(const Context& context, HighlightFlags flags, DisplayBuffer& display_buffer, BufferRange range) override
     {
+        auto overlaps = [](const BufferRange& lhs, const BufferRange& rhs) {
+            return lhs.begin < rhs.begin ? lhs.end > rhs.begin
+                                         : rhs.end > lhs.begin;
+        };
+
         if (flags != HighlightFlags::Highlight or not overlaps(display_buffer.range(), range))
             return;
 
diff --git a/src/shell_manager.cc b/src/shell_manager.cc
index 100c2185..5aa9ab9c 100644
--- a/src/shell_manager.cc
+++ b/src/shell_manager.cc
@@ -29,7 +29,7 @@ namespace
 
 struct Pipe
 {
-    Pipe() { pipe(m_fd); }
+    Pipe() { ::pipe(m_fd); }
     ~Pipe() { close_read_fd(); close_write_fd(); }
 
     int read_fd() const { return m_fd[0]; }
@@ -143,7 +143,7 @@ std::pair<String, int> ShellManager::eval(
             : FDWatcher(pipe.read_fd(),
                         [&contents, &pipe](FDWatcher& watcher, EventMode) {
                             char buffer[1024];
-                            size_t size = read(pipe.read_fd(), buffer, 1024);
+                            size_t size = ::read(pipe.read_fd(), buffer, 1024);
                             if (size <= 0)
                             {
                                 pipe.close_read_fd();