diff --git a/build/build.mk b/build/build.mk
index 2e261b7824f..678cbe90afd 100644
--- a/build/build.mk
+++ b/build/build.mk
@@ -31,8 +31,10 @@ $(stamp): build/buildcheck.sh
 	@build/buildcheck.sh $@
 
 configure: configure.ac $(PHP_M4_FILES)
+# Remove aclocal.m4 if present. It is automatically included by autoconf but
+# not used by the PHP build system since PHP 7.4.
 	@echo rebuilding $@
-	@rm -f $@
+	@rm -f $@ aclocal.m4
 	@$(PHP_AUTOCONF) $(PHP_AUTOCONF_FLAGS)
 
 $(config_h_in): configure
diff --git a/scripts/phpize.in b/scripts/phpize.in
index 7a10a369bf8..0d89341a75f 100644
--- a/scripts/phpize.in
+++ b/scripts/phpize.in
@@ -157,6 +157,10 @@ phpize_replace_prefix()
 
 phpize_autotools()
 {
+  # Remove aclocal.m4 if present. It is automatically included by autoconf but
+  # not used by the PHP build system since PHP 7.4.
+  rm -f aclocal.m4
+
   $PHP_AUTOCONF   || exit 1
   $PHP_AUTOHEADER || exit 1