diff --git a/meson.build b/meson.build
index e3f06616b5..51407098dc 100644
--- a/meson.build
+++ b/meson.build
@@ -278,6 +278,9 @@ cxx = find_program('c++', required : false)
 if cxx.found()
         #  Used only for tests
         add_languages('cpp')
+        cpp_cmd = ' '.join(meson.get_compiler('cpp').cmd_array())
+else
+        cpp_cmd = ''
 endif
 
 want_ossfuzz = get_option('oss-fuzz')
diff --git a/test/fuzz/meson.build b/test/fuzz/meson.build
index b4aadaab2e..b411e96915 100644
--- a/test/fuzz/meson.build
+++ b/test/fuzz/meson.build
@@ -9,7 +9,7 @@ sanitize_address = custom_target(
                    'fuzzers',
                    '-Db_lundef=false -Db_sanitize=address',
                    ' '.join(cc.cmd_array()),
-                   ' '.join(meson.get_compiler('cpp').cmd_array())])
+                   cpp_cmd])
 
 sanitizers = [['address', sanitize_address]]