diff --git a/Core/HLE/sceFont.cpp b/Core/HLE/sceFont.cpp
index 1e1300858d..0bb70b5bfb 100644
--- a/Core/HLE/sceFont.cpp
+++ b/Core/HLE/sceFont.cpp
@@ -361,6 +361,8 @@ public:
 		p.Do(fontLibID_);
 		if (s >= 2) {
 			p.Do(errorCodePtr_);
+		} else {
+			errorCodePtr_ = 0;
 		}
 	}
 	void run(MipsCall &call) override;
@@ -721,7 +723,8 @@ void PostAllocCallback::run(MipsCall &call) {
 	u32 v0 = currentMIPS->r[MIPS_REG_V0];
 	if (v0 == 0) {
 		// TODO: Who deletes fontLib?
-		Memory::Write_U32(ERROR_FONT_OUT_OF_MEMORY, errorCodePtr_);
+		if (errorCodePtr_)
+			Memory::Write_U32(ERROR_FONT_OUT_OF_MEMORY, errorCodePtr_);
 		call.setReturnValue(0);
 	} else {
 		FontLib *fontLib = fontLibList[fontLibID_];