diff --git a/easybuild/easyblocks/g/gcc.py b/easybuild/easyblocks/g/gcc.py
index 0a6892994ce..707e2115553 100644
--- a/easybuild/easyblocks/g/gcc.py
+++ b/easybuild/easyblocks/g/gcc.py
@@ -307,7 +307,8 @@ def configure_step(self):
             # #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
             gcc_config_headers = glob.glob(os.path.join('gcc', 'config', '*', '*linux*.h'))
             regex_subs = [('(_DYNAMIC_LINKER.*[":])/lib', r'\1%s/lib' % sysroot)]
-            apply_regex_substitutions(gcc_config_headers, regex_subs)
+            for gcc_config_header in gcc_config_headers:
+                apply_regex_substitutions(gcc_config_header, regex_subs)
 
         # self.configopts will be reused in a 3-staged build,
         # configopts is only used in first configure