diff --git a/src/modules/app_mono/app_mono_api.c b/src/modules/app_mono/app_mono_api.c
index 05b9d151a34..efd17e82266 100644
--- a/src/modules/app_mono/app_mono_api.c
+++ b/src/modules/app_mono/app_mono_api.c
@@ -83,7 +83,7 @@ int sr_mono_load_script(char *script)
 	mi = (sr_mono_load_t*)pkg_malloc(sizeof(sr_mono_load_t));
 	if(mi==NULL)
 	{
-		LM_ERR("no more pkg\n");
+		PKG_MEM_ERROR;
 		return -1;
 	}
 	memset(mi, 0, sizeof(sr_mono_load_t));
@@ -771,7 +771,7 @@ static int sr_mono_hdr_append (MonoString *hv)
 	hdr = (char*)pkg_malloc(txt.len+1);
 	if(hdr==NULL)
 	{
-		LM_ERR("no pkg memory left\n");
+		PKG_MEM_ERROR;
 		goto error;
 	}
 	memcpy(hdr, txt.s, txt.len);
@@ -866,7 +866,7 @@ static int sr_mono_hdr_insert (MonoString *hv)
 	hdr = (char*)pkg_malloc(txt.len+1);
 	if(hdr==NULL)
 	{
-		LM_ERR("no pkg memory left\n");
+		PKG_MEM_ERROR;
 		goto error;
 	}
 	memcpy(hdr, txt.s, txt.len);