diff --git a/src/builder-context.c b/src/builder-context.c
index 5bdbf581..07d7dc69 100644
--- a/src/builder-context.c
+++ b/src/builder-context.c
@@ -1013,8 +1013,21 @@ builder_context_set_enable_ccache (BuilderContext *self,
 }
 
 char **
-builder_context_extend_env (BuilderContext *self,
-                            char          **envp)
+builder_context_extend_env_pre (BuilderContext *self,
+                                char          **envp)
+{
+  if (self->source_date_epoch != 0)
+    {
+      g_autofree char *s_d_e = g_strdup_printf ("%" G_GUINT64_FORMAT, self->source_date_epoch);
+      envp = g_environ_setenv (envp, "SOURCE_DATE_EPOCH", s_d_e, FALSE);
+    }
+
+  return envp;
+}
+
+char **
+builder_context_extend_env_post (BuilderContext *self,
+                                 char          **envp)
 {
   g_autofree char *path = NULL;
   const char *ccache_dir = NULL;
@@ -1038,12 +1051,6 @@ builder_context_extend_env (BuilderContext *self,
   envp = g_environ_setenv (envp, "CCACHE_DIR", ccache_dir, TRUE);
   envp = g_environ_setenv (envp, "PATH", path, TRUE);
 
-  if (self->source_date_epoch != 0)
-    {
-      g_autofree char *s_d_e = g_strdup_printf ("%" G_GUINT64_FORMAT, self->source_date_epoch);
-      envp = g_environ_setenv (envp, "SOURCE_DATE_EPOCH", s_d_e, FALSE);
-    }
-
   return envp;
 }
 
diff --git a/src/builder-context.h b/src/builder-context.h
index be511dbb..58120630 100644
--- a/src/builder-context.h
+++ b/src/builder-context.h
@@ -142,8 +142,10 @@ void            builder_context_set_run_tests (BuilderContext *self,
 void            builder_context_set_no_shallow_clone (BuilderContext *self,
                                                       gboolean        no_shallow_clone);
 gboolean        builder_context_get_no_shallow_clone (BuilderContext *self);
-char **         builder_context_extend_env (BuilderContext *self,
-                                            char          **envp);
+char **         builder_context_extend_env_pre (BuilderContext *self,
+                                                 char          **envp);
+char **         builder_context_extend_env_post (BuilderContext *self,
+                                                 char          **envp);
 
 gboolean        builder_context_load_sdk_config (BuilderContext       *self,
                                                  const char           *sdk_path,
diff --git a/src/builder-options.c b/src/builder-options.c
index c398eaac..51cbf841 100644
--- a/src/builder-options.c
+++ b/src/builder-options.c
@@ -1093,6 +1093,8 @@ builder_options_get_env (BuilderOptions *self, BuilderContext *context)
   char **envp = NULL;
   const char *cflags, *cppflags, *cxxflags, *ldflags;
 
+  envp = builder_context_extend_env_pre (context, envp);
+
   cflags = builder_options_get_cflags (self, context);
   if (cflags)
     envp = g_environ_setenv (envp, "CFLAGS", cflags, FALSE);
@@ -1137,7 +1139,7 @@ builder_options_get_env (BuilderOptions *self, BuilderContext *context)
         }
     }
 
-  envp = builder_context_extend_env (context, envp);
+  envp = builder_context_extend_env_post (context, envp);
 
   envp = builder_options_update_path (self, context, envp);
   envp = builder_options_update_ld_path (self, context, envp);