diff --git a/configure b/configure
index ba94e2a..dd6aba8 100755
--- a/configure
+++ b/configure
@@ -12887,7 +12887,7 @@ else
   libbacktrace_cv_objcopy_debuglink=no
 elif ! test -n "${OBJCOPY}"; then
   libbacktrace_cv_objcopy_debuglink=no
-elif ${OBJCOPY} --help | fgrep add-gnu-debuglink >/dev/null 2>&1; then
+elif ${OBJCOPY} --help | grep add-gnu-debuglink >/dev/null 2>&1; then
   libbacktrace_cv_objcopy_debuglink=yes
 else
   libbacktrace_cv_objcopy_debuglink=no
diff --git a/configure.ac b/configure.ac
index f0b1bdb..b60e98b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -497,7 +497,7 @@ AC_CACHE_CHECK([whether objcopy supports debuglink],
   libbacktrace_cv_objcopy_debuglink=no
 elif ! test -n "${OBJCOPY}"; then
   libbacktrace_cv_objcopy_debuglink=no
-elif ${OBJCOPY} --help | fgrep add-gnu-debuglink >/dev/null 2>&1; then
+elif ${OBJCOPY} --help | grep add-gnu-debuglink >/dev/null 2>&1; then
   libbacktrace_cv_objcopy_debuglink=yes
 else
   libbacktrace_cv_objcopy_debuglink=no