diff --git a/srcpkgs/firebird/template b/srcpkgs/firebird/template
index c7dd663d27..3257704c8d 100644
--- a/srcpkgs/firebird/template
+++ b/srcpkgs/firebird/template
@@ -39,7 +39,7 @@ pre_configure() {
 	# Set -fPIC for btyacc tool to support PIE linker flags
 	sed -i extern/btyacc/Makefile -e 's;CFLAGS=;CFLAGS=-fPIC;'
 
-	if [ "${_gccver%%.*}" -gt 5 ]; then
+	if [ ${XBPS_GCC_VERSION_MAJOR} -gt 5 ]; then
 		# Fix gcc6 error for "void * operator new(size_t size) { return 0; }"
 		patch -p0 < ${FILESDIR}/fix-gcc6-no_throw_bad_alloc.patch
 	fi