diff --git a/engines/mohawk/detection_tables.h b/engines/mohawk/detection_tables.h
index 7632cde..7e84d52 100644
--- a/engines/mohawk/detection_tables.h
+++ b/engines/mohawk/detection_tables.h
@@ -1396,6 +1396,22 @@ static const MohawkGameDescription gameDescriptions[] = {
 		0
 	},
 
+	// Just Grandma and Me 1.1 Mac, English/Japanese/Spanish version.
+	{
+		{
+			"grandma",
+			"v1.1",
+			AD_ENTRY1("BookOutline", "9162483da06179e76f4a082412245efa"),
+			Common::EN_ANY,
+			Common::kPlatformMacintosh,
+			ADGF_NO_FLAGS,
+			GUIO1(GUIO_NOASPECT)
+		},
+		GType_LIVINGBOOKSV1,
+		GF_LB_10,
+		0
+	},
+
 	// from jjnryan in bug #3389857
 	{
 		{
diff --git a/engines/mohawk/livingbooks.cpp b/engines/mohawk/livingbooks.cpp
index 998ef04..0ffaec5 100644
--- a/engines/mohawk/livingbooks.cpp
+++ b/engines/mohawk/livingbooks.cpp
@@ -868,6 +868,8 @@ Common::String MohawkEngine_LivingBooks::convertMacFileName(const Common::String
 			continue;
 		if (string[i] == ':')
 			filename += '/';
+		else if (string[i] == '/')
+			filename += '_';
 		else
 			filename += string[i];
 	}