diff --git a/rpcs3/Emu/Cell/Modules/cellSysutil.cpp b/rpcs3/Emu/Cell/Modules/cellSysutil.cpp
index 411e0478f7..2ed5328bdd 100644
--- a/rpcs3/Emu/Cell/Modules/cellSysutil.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellSysutil.cpp
@@ -292,22 +292,58 @@ error_code cellSysutilGetSystemParamString(CellSysutilParamId id, vm::ptr<char>
 		return CELL_SYSUTIL_ERROR_VALUE;
 	}
 
-	memset(buf.get_ptr(), 0, bufsize);
+	u32 copy_size;
+	std::string param_str = "Unknown";
+	bool report_use = false;
 
 	switch (id)
 	{
 	case CELL_SYSUTIL_SYSTEMPARAM_ID_NICKNAME:
-		memcpy(buf.get_ptr(), "Unknown", 8); // for example
-	break;
-
-	case CELL_SYSUTIL_SYSTEMPARAM_ID_CURRENT_USERNAME:
-		memcpy(buf.get_ptr(), "Unknown", 8);
-	break;
-
-	default:
-		return CELL_SYSUTIL_ERROR_VALUE;
+	{
+		copy_size = CELL_SYSUTIL_SYSTEMPARAM_NICKNAME_SIZE;
+		break;
 	}
 
+	case CELL_SYSUTIL_SYSTEMPARAM_ID_CURRENT_USERNAME:
+	{
+		const fs::file username(vfs::get(fmt::format("/dev_hdd0/home/%08u/localusername", Emu.GetUsrId())));
+	
+		if (!username)
+		{
+			cellSysutil.error("cellSysutilGetSystemParamString(): Username for user %08u doesn't exist. Did you delete the username file?", Emu.GetUsrId());
+		}
+		else
+		{
+			// Read current username
+			param_str = username.to_string();
+		}
+
+		copy_size = CELL_SYSUTIL_SYSTEMPARAM_CURRENT_USERNAME_SIZE;
+		break;
+	}
+
+	case CELL_SYSUTIL_SYSTEMPARAM_ID_x1011: // Same as x1012
+	case CELL_SYSUTIL_SYSTEMPARAM_ID_x1012: copy_size = 0x400; report_use = true; break;
+	case CELL_SYSUTIL_SYSTEMPARAM_ID_x1024:	copy_size = 0x100; report_use = true; break;
+	case CELL_SYSUTIL_SYSTEMPARAM_ID_x1008: copy_size = 0x4; report_use = true; break;
+	default:
+	{
+		return CELL_SYSUTIL_ERROR_VALUE;
+	}
+	}
+
+	if (bufsize != copy_size)
+	{
+		return CELL_SYSUTIL_ERROR_SIZE;
+	}
+
+	if (report_use)
+	{
+		cellSysutil.error("cellSysutilGetSystemParamString: Unknown ParamId 0x%x", id);
+	}
+
+	std::strncpy(buf.get_ptr(), param_str.c_str(), copy_size - 1);
+	buf[copy_size - 1] = '\0';
 	return CELL_OK;
 }
 
diff --git a/rpcs3/Emu/Cell/Modules/cellSysutil.h b/rpcs3/Emu/Cell/Modules/cellSysutil.h
index fe5ff892e7..0caba70e78 100644
--- a/rpcs3/Emu/Cell/Modules/cellSysutil.h
+++ b/rpcs3/Emu/Cell/Modules/cellSysutil.h
@@ -39,6 +39,11 @@ enum CellSysutilParamId: s32
 	// Strings
 	CELL_SYSUTIL_SYSTEMPARAM_ID_NICKNAME                        = 0x0113,
 	CELL_SYSUTIL_SYSTEMPARAM_ID_CURRENT_USERNAME                = 0x0131,
+	// Unknown strings
+	CELL_SYSUTIL_SYSTEMPARAM_ID_x1008                           = 0x1008,
+	CELL_SYSUTIL_SYSTEMPARAM_ID_x1011                           = 0x1011,
+	CELL_SYSUTIL_SYSTEMPARAM_ID_x1012                           = 0x1012, // Equal meaning to x1011
+	CELL_SYSUTIL_SYSTEMPARAM_ID_x1024                           = 0x1024,
 };
 
 enum CellSysutilLang : s32
@@ -65,6 +70,12 @@ enum CellSysutilLang : s32
 	CELL_SYSUTIL_LANG_TURKISH        = 19, // FW 4.30
 };
 
+enum
+{
+	CELL_SYSUTIL_SYSTEMPARAM_NICKNAME_SIZE = 0x80,
+	CELL_SYSUTIL_SYSTEMPARAM_CURRENT_USERNAME_SIZE = 0x40
+};
+
 enum
 {
 	CELL_SYSUTIL_REQUEST_EXITGAME  = 0x0101,
diff --git a/rpcs3/Emu/Cell/Modules/cellUserInfo.cpp b/rpcs3/Emu/Cell/Modules/cellUserInfo.cpp
index 0e2e367373..e34c5fe7d1 100644
--- a/rpcs3/Emu/Cell/Modules/cellUserInfo.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellUserInfo.cpp
@@ -56,7 +56,7 @@ error_code cellUserInfoGetStat(u32 id, vm::ptr<CellUserInfoUserStat> stat)
 
 	if (!f)
 	{
-		cellUserInfo.error("cellUserInfoGetStat(): CELL_USERINFO_ERROR_INTERNAL. Username for user %d doesn't exist. Did you delete the username file?", id);
+		cellUserInfo.error("cellUserInfoGetStat(): CELL_USERINFO_ERROR_INTERNAL. Username for user %08u doesn't exist. Did you delete the username file?", id);
 		return CELL_USERINFO_ERROR_INTERNAL;
 	}