diff --git a/extensions/sdktools/gamerulesnatives.cpp b/extensions/sdktools/gamerulesnatives.cpp
index 3c4f6041..e08dce73 100644
--- a/extensions/sdktools/gamerulesnatives.cpp
+++ b/extensions/sdktools/gamerulesnatives.cpp
@@ -176,7 +176,8 @@ static cell_t GameRules_GetProp(IPluginContext *pContext, const cell_t *params)
 	is_unsigned = ((pProp->GetFlags() & SPROP_UNSIGNED) == SPROP_UNSIGNED);
 
 	// This isn't in CS:S yet, but will be, doesn't hurt to add now, and will save us a build later
-#if SOURCE_ENGINE == SE_CSS || SOURCE_ENGINE == SE_HL2DM || SOURCE_ENGINE == SE_DODS || SOURCE_ENGINE == SE_TF2
+#if SOURCE_ENGINE == SE_CSS || SOURCE_ENGINE == SE_HL2DM || SOURCE_ENGINE == SE_DODS || SOURCE_ENGINE == SE_TF2 \
+	|| SOURCE_ENGINE == SE_SDK2013 || SOURCE_ENGINE == SE_BMS
 	if (pProp->GetFlags() & SPROP_VARINT)
 	{
 		bit_count = sizeof(int) * 8;
@@ -245,7 +246,8 @@ static cell_t GameRules_SetProp(IPluginContext *pContext, const cell_t *params)
 
 	FIND_PROP_SEND(DPT_Int, "integer");
 
-#if SOURCE_ENGINE == SE_CSS || SOURCE_ENGINE == SE_HL2DM || SOURCE_ENGINE == SE_DODS || SOURCE_ENGINE == SE_TF2
+#if SOURCE_ENGINE == SE_CSS || SOURCE_ENGINE == SE_HL2DM || SOURCE_ENGINE == SE_DODS || SOURCE_ENGINE == SE_TF2 \
+	|| SOURCE_ENGINE == SE_SDK2013 || SOURCE_ENGINE == SE_BMS
 	if (pProp->GetFlags() & SPROP_VARINT)
 	{
 		bit_count = sizeof(int) * 8;