diff --git a/AMBuildScript b/AMBuildScript
index eddb8e7..f70ea54 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -277,8 +277,8 @@ class BuildInfo:
         if self.builder.options.opt == '1':
             cxx.cflags += ['-O3']
 
-    # Don't omit the frame pointer.
-    cxx.cflags += ['-fno-omit-frame-pointer']
+        # Don't omit the frame pointer.
+        cxx.cflags += ['-fno-omit-frame-pointer']
 
     def configure_msvc(self, cxx):
         if self.builder.options.debug == '1':