diff --git a/AMBuildScript b/AMBuildScript
index a6d6634..e23e76b 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -276,9 +276,11 @@ class MMSConfig(object):
       elif cxx.behavior == 'msvc':
         cxx.cflags += ['/Od', '/RTC1']
 
+    # Don't omit the frame pointer.
     # This needs to be after our optimization flags which could otherwise disable it.
-    if cxx.family == 'msvc':
-      # Don't omit the frame pointer.
+    if cxx.behavior == 'gcc':
+      cxx.cflags += ['-fno-omit-frame-pointer']
+    elif cxx.behavior == 'msvc':
       cxx.cflags += ['/Oy-']
 
     # Platform-specifics