diff --git a/lld/MachO/Writer.cpp b/lld/MachO/Writer.cpp
--- a/lld/MachO/Writer.cpp
+++ b/lld/MachO/Writer.cpp
@@ -133,8 +133,8 @@
   LCSubFramework(StringRef umbrella) : umbrella(umbrella) {}
 
   uint32_t getSize() const override {
-    return alignTo(sizeof(sub_framework_command) + umbrella.size() + 1,
-                   target->wordSize);
+    return alignToPowerOf2(sizeof(sub_framework_command) + umbrella.size() + 1,
+                           target->wordSize);
   }
 
   void writeTo(uint8_t *buf) const override {
@@ -388,7 +388,8 @@
   explicit LCRPath(StringRef path) : path(path) {}
 
   uint32_t getSize() const override {
-    return alignTo(sizeof(rpath_command) + path.size() + 1, target->wordSize);
+    return alignToPowerOf2(sizeof(rpath_command) + path.size() + 1,
+                           target->wordSize);
   }
 
   void writeTo(uint8_t *buf) const override {
@@ -412,8 +413,8 @@
   explicit LCDyldEnv(StringRef name) : name(name) {}
 
   uint32_t getSize() const override {
-    return alignTo(sizeof(dyld_env_command) + name.size() + 1,
-                   target->wordSize);
+    return alignToPowerOf2(sizeof(dyld_env_command) + name.size() + 1,
+                           target->wordSize);
   }
 
   void writeTo(uint8_t *buf) const override {
@@ -1075,8 +1076,8 @@
     // `fileOff + fileSize == next segment fileOff`. So we call alignTo() before
     // (instead of after) computing fileSize to ensure that the segments are
     // contiguous. We handle addr / vmSize similarly for the same reason.
-    fileOff = alignTo(fileOff, pageSize);
-    addr = alignTo(addr, pageSize);
+    fileOff = alignToPowerOf2(fileOff, pageSize);
+    addr = alignToPowerOf2(addr, pageSize);
     seg->vmSize = addr - seg->addr;
     seg->fileSize = fileOff - seg->fileOff;
     seg->assignAddressesToStartEndSymbols();